Here are a few questions about computers I’ve received recently from people like you, and my answers. I have edited and restated the questions a bit, for readability.

I need to use Microsoft Publisher documents on my MacBook. Unfortunately, I can’t figure out how to do this. I have tried to run it on Microsoft Word, but this didn’t work.

As far as I know, neither Microsoft nor Apple nor anyone else makes a native Mac program that can open or edit Microsoft Publisher documents, which use their own special format, rather than any common cross-platform format.

However, there may be some workarounds. If you own or can borrow a PC and a copy of Microsoft Publisher, you could export the documents as PDF files from within Publisher, and then open them on a Mac. Or you could run Publisher itself on your MacBook, since Macs can run Windows and Windows programs, if you buy and install Windows.

Your Mossberg Solution column recently recommended an add-on for Firefox called Surf Canyon that improves searches. But I am wondering if it’s safe to use, since it is labeled “beta.”

I have been using Surf Canyon in Firefox for months, without any problems. (It also works in Internet Explorer.) You are correct that it’s a beta, but that label doesn’t usually mean a product is unsafe, just that it’s incomplete or unpolished. In the old days, a “beta” product was usually pretty flaky and available only to a very small number of testers until the kinks were worked out. Now, especially with Web-related products, a “beta” is often just another word for version 1.0 of a product. It is open to all, and may not work perfectly, but is usually not dangerous to your computer.

Is there a legal way to use a smartphone as a modem for a laptop?

Yes, indeed. It depends on your carrier, and your plan, and your phone, but it can be done, perfectly legally, either using a cable or Bluetooth wireless to connect the phone to the laptop. Note that, depending on your plan, the carrier may well charge you an added monthly fee for this privilege. Also, the speed of your connection may be a bit slower than the speed you’d get from a cellular data card you insert directly into the laptop or from one that’s built in.

• You can find Mossberg’s Mailbox, and my other columns, online free of charge at the new All Things Digital Web site, http://walt.allthingsd.com.

I have a laptop that I use primarily to play music. Is there any way to disable its connection to a wireless network?

Sure, but exactly how you do that depends on the laptop’s hardware and operating system. Some Windows laptops have a hardware switch, or a keyboard function — often identified by some sort of transmitter icon — that turns the Wi-Fi wireless radio inside off. If yours does, just use these hardware controls to kill Wi-Fi.

Others require disabling Wi-Fi via software. In Windows XP, go to the Network Connections control panel, find the Wi-Fi connection, right-click on that icon, and select “Disable.” In Windows Vista, go to the Network and Sharing Center control panel, locate the wireless network, and click the “Disconnect” command in the information area under its name. On a Mac laptop, you can just click on the fan-like Wi-Fi symbol in the menu bar and select “Turn Airport Off” (”Airport” is Apple’s term for its Wi-Fi radio).

If your Windows laptop uses an application other than control panels to manage your Wi-Fi connections, you may have to disable them from within that program.

Thanks for your column on netbooks. Which of the netbooks came pre-installed with Microsoft Office? For those that didn’t, how can you install Microsoft Office onto the device?

I tested only four models, all running Windows XP. None came with a full, activated version of Office installed. Two — the Acer Aspire One and the MSI Wind U100 — came with trial versions of Office pre-installed. Another, the Asus Eee 1000H, came with an alternative office suite, StarOffice. Two, the Asus and the MSI, came with a stripped-down office suite, Microsoft Works.

The simplest way to install Office, or any other software that comes on disc, onto a netbook is to plug in an external DVD drive using a USB port.

I have two questions about the iPhone. My first question is whether or not it’s possible to tether the phone to a computer for use as a modem. My second question is whether it’s possible to rent or buy movies on the phone itself or if that needs to be done from a laptop or desktop?

It isn’t currently possible to use the iPhone as a tethered modem, but AT&T recently said that functionality might be coming. It also isn’t possible to buy or rent movies directly on the phone, only music. You have to transfer movies from a computer.

• You can find Mossberg’s Mailbox, and my other columns, online free of charge at the new All Things Digital Web site, http://walt.allthingsd.com.

A friend of mine suggested that I “defragment” my computer every once in a while. He says it will boost performance, but he also said it will move my data around. I tend to be very organized as to where I put documents on my computer. Will defragmenting my computer jumble my files and put them into random places?

No. Defragmenting a hard disk doesn’t change or scramble the organization of files and folders that you have established. Your file organization should look just the same after defragmenting the disk. What defragmenting does is rearrange the location on the disk of the data segments that make up your files. In some cases, a single file like a word-processor document might actually be made up of multiple data segments, invisible to you, that are located in widely separated physical spots on the disk. Defragmenting tries to optimize the location of these segments so that the computer operates more efficiently.

I saw your review of Norton Internet Security 2009, and wonder what is the difference between this product and Norton 360?

Norton 360 has the same features as Norton Internet Security, but adds some additional ones, like online backup and PC “tune-up.” It also costs more. However, the current version of Norton 360 doesn’t include the improvements I wrote about in the NIS product that make it faster and less of a burden on your computer. Those are planned for a future version of Norton 360.

Can I use one of the new 3G iPhones as a wireless modem for my Apple laptop?

No. That function isn’t built into the iPhone and Apple yanked from distribution a third-party program that enabled using the phone as a modem. I suspect the reason is a business one, not a technical one. Cellphone carriers like AT&T typically take the position that connecting a laptop to their networks, whether via a data card or via a cellphone used as a modem, should command a higher monthly data charge than they typically levy for a cellphone alone.

You can find Mossberg’s Mailbox and my other columns online free at the All Things Digital Web site, http://walt.allthingsd.com.

My computer takes forever to start up. I am tempted to just put it into hibernation or standby when I am done with it for the day, so that starting up will be quicker. Would I be damaging my computer by doing so?

Doing this shouldn’t cause any damage to your computer. For many users, one of these two techniques is standard procedure, in fact. Standby, or sleep, mode, gets you back to work more quickly, because the machine never completely shuts down. Its biggest downside is that, on occasion, computers fail to “awaken” properly from this mode, and you have to do a full restart. So I would advise that you carefully save any work before initiating standby.

In my experience, this kind of glitch is less likely to happen when you use hibernation, in which the computer does completely shut down, but first saves to the hard disk a record of the state of the machine.

When the computer restarts, all open programs and files are restored just as you left them. The downside here is that getting going again using hibernation takes longer than it does using standby mode. And, even though it’s more reliable than standby mode, I’d still advise saving all your work each time before using hibernation.

I am thinking about switching to a MacBook Pro laptop. I understand that it has a real good automatic Wi-Fi detection system. But if I also use a cellular modem card from Verizon or Sprint to access the Internet, won’t the two conflict?

No. The Mac operating system treats the two kinds of connections separately, each with its own user interface. It can detect and connect either one, if you have coverage of both types.

I’m interested in getting a laptop with LED display and SSD drive. Do you think the price for those components will fall drastically in three months’ time?

Displays that use light-emitting diodes (LEDs) have been around for a while and don’t tend to be a major deal breaker in the higher-end laptops in which they are commonly offered. But solid-state drives (SSDs), which replace hard disks with memory chips to store your data, are much rarer and newer and still can add significantly to the price of even a high-end laptop. I am no expert in price forecasting, but, while SSD prices will fall, I doubt they will drop “drastically” in as little as three months.

You can find Mossberg’s Mailbox, and my other columns, online for free at the new All Things Digital web site, http://walt.allthingsd.com.

With the new iPods coming out, how do you deactivate an old one? I think Apple only allows a certain number to be used with an account.

You don’t have to deactivate an iPod if you replace it. The copy-protection rules imposed on Apple by the entertainment companies allow for copy-protected music and videos purchased from the iTunes Music Store to be stored and played on an unlimited number of iPods.

The only “deactivation” iTunes users have to perform is on a computer — Windows or Mac — because the copy-protection rules allow purchased, copy-protected songs and videos to be played on no more than five computers at a time. So, before you replace a computer on which you are storing such purchased, protected iTunes material, you should deauthorize the machine by going to the “Store” menu in iTunes and selecting “Deauthorize Computer…”.

Of course, if you aren’t at or near the five-computer limit, this issue may not matter. It’s also irrelevant if none of the music or videos you play from within iTunes is copy-protected material purchased from the iTunes store. You can happily use iTunes and iPods without buying any copy-protected stuff from Apple. You can restrict your music and videos to those you copy from legally obtained CDs, those you create yourself, or those you buy in unprotected formats from iTunes, or other sites, like eMusic.

I have a printer hard-wired to a desktop computer, but would like it to be available to my laptop wirelessly over my home network. How can I do this?

There are two main methods, assuming the printer doesn’t have a built-in networking port or Wi-Fi transmitter. One method is to buy a small box called a print server and plug it into your router. Then, you plug the printer into the print server, and, with the right software and settings, it will appear on your network and be available to any computer on the network, wired or wireless.

The same companies that make routers, such as Linksys and Belkin, also often make these print servers. The other method is to buy a wireless router that has such a print-server function built-in, with a USB port for connecting a printer.

If I have a laptop with Wi-Fi capability, does that mean I can surf the Web while sitting in a car?

Yes, but only if the car is in range of a Wi-Fi network that is either open (not password-protected) or for which you know the password. And it would only be practical if the car was stopped or parked, since a car moving at normal speed would very quickly drive out of range of any networks you encountered.

A better option, which works even when a car is moving, is to purchase a high-speed cellular wireless modem for your laptop, or buy a laptop with such a modem built-in. These modems, which get you on the Internet via citywide cellular-data networks instead of Wi-Fi, can remain in range for miles. But they require hefty fees, typically $60 a month. And, of course, you should only be surfing the net in a moving car if you are a passenger in that car, not the driver.

You can find Mossberg’s Mailbox, and my other columns, online for free at the new All Things Digital Web site, http://walt.allthingsd.com.

Write to Walter S. Mossberg at mossberg@wsj.com

Here are a few questions about computers I’ve received recently from people like you, and my answers. I have edited and restated the questions a bit, for readability. This week my mailbox contained questions about external modems for a MacBook, resizing photos for email, and using the forthcoming iPhone in Europe.

In your laptop buying guide, you mentioned that the MacBook from Apple lacks both an internal cellphone modem and an external slot in which to insert one. Is there a way to hook up a cellphone modem via a USB port?

Yes, several cellphone carriers offer external modems that plug into USB ports. I haven’t tested these, but have no reason to doubt that they work. However, if you are buying a MacBook, make sure any such modem you buy is Mac-compatible. Both Verizon and Sprint carry a Novatel model that plugs into a USB port and is listed as being compatible with the Mac.

When I email pictures to my sister, she has to scroll up, down, and across to see the whole thing. What can I do to my computer or to hers?

You can make the picture smaller before emailing it. Both Windows and Macintosh computers offer you the option of shrinking the size of photos you email. For instance, in the My Pictures folder in Windows XP, if you select a photo and then choose “Email this file” from the menu at the left, you will be asked if you want to make the picture smaller. On the Mac, in the built-in iPhoto program, when you select a photo and click on the Email icon at the bottom, you are offered a choice of sizes for the picture.

Will the forthcoming Apple iPhone be usable in Europe with a SIM card, and will it be based on a Palm platform or a Microsoft one?

Nothing about any future product can be certain until it is released, but Apple officials have said that the iPhone will be usable in Europe if you insert into it a SIM card from a European carrier. However, it won’t have one of its touted features, “visual voicemail,” which depends upon AT&T, the iPhone’s U.S. carrier.

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Because of the volume of e-mail I receive, I can’t routinely answer individual questions by e-mail, or consult on individual problems or purchasing decisions. I read all questions I receive and select three each week to answer in the column.

Write to Walter S. Mossberg at mossberg@wsj.com

Here are a few questions about computers I’ve received recently from people like you, and my answers. I have edited and restated the questions a bit, for readability. This week my mailbox contained questions about waiting for the new Mac OS, using an iPod with an old version of Windows and getting broadband in rural areas.

I am planning to replace my aging Dell desktop with one of Apple’s iMac machines. Now that Apple has announced that the new OS X Leopard will be released next spring, is it advisable to wait for Leopard’s release to buy a new iMac? Or will the current iMac be able to run Leopard when it is released?

If history is any guide, an iMac you purchase now, or in the next few months, should easily be able to handle Leopard, which is the sixth version of Apple’s Mac OS X to be released since 2001. Since Apple upgrades its operating system far more often than Microsoft does, the upgrades tend to require less of a jump in hardware capability. (Microsoft’s forthcoming new version of Windows called Vista, due in January 2007, is the first major overhaul of Windows since 2001.)

However, Apple hasn’t promised that every new feature of Leopard will run on any iMac sold now, and the company has coldly cut off users of older models in the past. So, if you can wait, do so. It’s always better to buy new machines with a new OS preinstalled, even though Apple’s OS upgrade process has generally been much quicker and more reliable than Microsoft’s. Another benefit: Apple typically charges existing users $129 for an upgraded OS, even if their machines are only, say, six months old. But new Macs next spring will include Leopard free of charge.

Even if you can’t wait until spring (you said your Dell was “aging”), consider waiting a few months to see if Apple brings out a new iMac with Intel’s latest processor, the Core 2 Duo, which is faster and more efficient than the Core Duo in current iMacs. I have no information that this will happen, but you should know by November or so.

I’ve got a new iPod I want to use with my Dell Dimension 4100 running Windows Me, but the iTunes software will apparently run only on XP or 2000. What’s my best bet for software to load files onto my iPod?

Try a product called XPlay 2, by Mediafour. It is specifically designed to work with older versions of Windows, including Windows Me. It costs $30 and can be downloaded at mediafour.com/products/xplay/. There is a free trial, but it is limited.

We live on a dirt road in rural Virginia with no cable and can’t get DSL. How can we get broadband? We would prefer not to do a satellite connection because you still need a phone modem to send material. Is there some kind of fast wireless connection we could get from our PC to our ISP? I see laptops with wireless antennas sticking out of them around here and they must transmit to somewhere.

Satellite Internet access has improved, and no longer requires a dial-up modem for the return path — in fact no use of the phone line is needed at all. Of course, as with any satellite service, your house must have a clear line of sight to the area of the sky where the particular satellite you use is situated. For more information, see www.hughesnet.com.

Another option, if you have good cellphone coverage, is a broadband cell-phone modem. It uses the cellphone network to connect you to the Internet at speeds roughly comparable with a slow home DSL line — which is still much, much faster than your current dial-up connection. This is probably what all those laptops with antennas are using.

These cellphone modems, using a technology called EVDO, are offered by Verizon and Sprint, and Cingular is slowly building a similar wireless broadband capability. For more information, see the Web sites of the phone carriers.

In some parts of the country, but not Virginia, a company called Clearwire is offering wireless broadband to rural homes.

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Because of the volume of email I receive, I can’t routinely answer individual questions by email, or consult on individual problems or purchasing decisions. I read all questions I receive and select three each week to answer in the column.

Write to Walter S. Mossberg at mossberg@wsj.com

Here are a few questions about computers I’ve received recently from people like you, and my answers. I have edited and restated the questions a bit, for readability. This week my mailbox contained questions about using cellphones as modems for laptops, storing personal files from office computers and buying an ultralight laptop.

I would like to buy one of the new phones that run on high-speed networks from Verizon or Sprint and use it as a modem with my laptop. Do the phone carriers charge extra for this?

Yes, both Sprint and Verizon do impose an extra monthly charge for using this feature of phones like the new Treo 700p. They reason that if you access the Web on your phone, which has a limited browser and no hard disk to store large downloads, you aren’t likely to use a huge amount of network capacity. But once the phone is used as a modem with a laptop, it becomes very much like their laptop cards, for which they do charge a hefty monthly data fee. For instance, Sprint charges $40-$50 a month extra for unlimited data connections using the Treo 700p as a modem, depending on the length of your contract and whether you also have a Sprint voice plan.

I’m changing jobs after 10 years. What is the best way to take my personal files with me? I know Microsoft Office documents can be readily put on any storage media, but what about emails and contacts stored in Outlook? Can you offer some advice on how to best accomplish this move? (I am not taking any company property.)

Since this isn’t a legal column, I won’t weigh in on what constitutes personal data on a company computer. But it’s pretty easy to move your email and contacts from your Outlook to another copy of Outlook on a new PC at your home or your new office. In Outlook, go to the File menu. Select “Import and Export… “. Choose “Export to a File.” Then select “Personal Folder File (.pst).” Next, choose the Outlook folder containing the data you want to export. This could be your email Inbox, or any other email folder, or it could be the Contacts folder, or any other non-email folder, like Calendar. Finally, select the location where you want to save the exported data. If you are using a USB drive, use the “Browse” button to locate it. Then, hit “Next” and then “Finish.” Repeat the process for each folder you want to export. At the new computer, insert the drive with your exported data, launch Outlook, bring up “Import and Export…” again, and this time select “Import from another program or file.” Follow the steps to import a .pst file.

I am interested in purchasing an ultralight laptop computer for traveling, something I could carry in a messenger bag. I wish to use it mostly for Internet connectivity and word processing. I might even sneak in a DVD for use on the plane. I have looked at the Sony Vaio TX series and the Dell X-1. Are there others in the same size/weight category I should consider?

Yes. You might look at the HP Compaq nc2400 or the Lenovo ThinkPad X60 or the Gateway NX100X or the Toshiba Portégé R200. Except for the HP, none of these has an internal DVD drive, though, so depending on how important that is to you, you might have to spend more or go up to around four pounds. The Sony TX is excellent and combines low weight with an internal DVD. But it’s expensive. Other options for ultralights with internal DVD drives are offered by Fujitsu and Panasonic. I haven’t reviewed all of these, so I can’t recommend them all. My review of the Sony TX is at: http://ptech.wsj.com/archive/ptech-20051006.html. My review of the HP nc2400 is at: http://ptech.wsj.com/archive/ptech-20060518.html. My review of the ThinkPad X60 is at: http://ptech.wsj.com/archive/ptech-20060420.html.

* * *

Because of the volume of email I receive, I can’t routinely answer individual questions by email, or consult on individual problems or purchasing decisions. I read all questions I receive and select three each week to answer in the column.

Write to Walter S. Mossberg at mossberg@wsj.com

Here are a few questions about computers I’ve received recently from people like you, and my answers. I have edited and restated the questions a bit, for readability. This week my mailbox contained questions about Internet security fears, red-eye elimination in photos and software availability for Macs.

If you have a question, send it to me at mossberg@wsj.com, and I may select it to be answered here in Mossberg’s Mailbox.

Are there any possible security dangers when a DSL modem is left on while the computer is turned off?

No, as long as it’s the only computer connected to the modem. The modem only fetches data from the Internet when a computer program, like a Web browser or email software, requests it to do so. If the computer is off, no such requests can be made, so no data, safe or unsafe, is being received. Similarly, if the computer is on but the modem is off, the computer isn’t connected to the Internet, and can’t receive any data, normal or malicious.

However, I feel compelled to note that, if you allow your Internet usage to be totally ruled by security fears, you may miss out on a lot. One of the great benefits of always-on broadband services like DSL is that your email flows in continuously; upgrades (including security upgrades) can be downloaded automatically, day or night; and you can take advantage of remote backup and file-synchronization services that work in the middle of the night.

I have a new Sony camera and need help editing my photos to eliminate red eye. I have small grandchildren who always have red eyes in my pictures. What software can I use to get rid of it?

Almost every photo software program I have tested has a red-eye elimination feature, and most are adequate. You just have to get the hang of it. If you have a Windows PC, try Google’s free Picasa program, or Adobe Photoshop Elements. On a Mac, you can use the built-in iPhoto software, or the Mac version of Photoshop Elements. You could also use a professional program like Photoshop, though that might be overkill.

I am thinking seriously that my next computer purchase will be an Apple. My question is: How prolific is the software that is written for Macs? I’m thinking of financial software like Quicken, but also the basic Office suite of products.

There are Mac versions of both Quicken and Microsoft Office. The latter can directly read and write to the same file formats as its Windows counterpart; the former cannot. Apple claims there are now thousands of software programs that run on the current Macs. So is there is a decent selection of software for general consumers.

However, there is vastly more software available for Windows, especially in certain categories like games, business software, databases and niche products for specific professions and hobbies. If you are likely to be satisfied with the main types of software — like office programs, Web browsers, email programs and multimedia players — you’ll be fine with the Mac. But if you are interested in any of these other categories, or in generally having the greatest selection, stick with Windows.

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Because of the volume of e-mail I receive, I can’t routinely answer individual questions by e-mail, or consult on individual problems or purchasing decisions. I read all questions I receive and select three each week to answer in the column.

Write to Walter S. Mossberg at mossberg@wsj.com

Here are a few questions about computers I’ve received recently from people like you, and my answers. I have edited and restated the questions a bit, for readability. This week my mailbox contained questions about switching to DSL from dial-up, browser hijacking and whether to wait for Windows Vista.

If you have a question, send it to me at mossberg@wsj.com, and I may select it to be answered here in Mossberg’s Mailbox.

We are satisfied users of dial-up Internet access. Our only complaint is the very slow transfer rate of four kilobits per second when we download updates for our security software. Would a 768 kbps DSL line really download these files almost 200 times faster than dial-up? It costs only slightly more than we pay for dial-up.

Most Internet services don’t actually function at the advertised speed, due to network congestion and other factors. So, DSL isn’t going to operate at 768 kbps. But it will probably run at 600 kbps or more, which is still vastly faster than dial-up. And, since file transfers tend to be the speediest online activity on DSL or cable modem services, you should see a dramatic reduction in the time it takes to update your security software. With DSL now starting at around $15 a month, the same or less than dial-up typically costs, I can’t see any reason why anyone who uses the Internet regularly should stick with dial-up access.

When I click on my browser in Windows XP, I get a page saying spyware is detected, and my computer is under the control of a remote computer. This screen tells me that I can solve this issue by downloading various security programs I’ve never heard of. I’ve tried to get rid of this page by deleting temporary files, cookies, files, programs — anything else I can think of — but it keeps appearing. Neither Norton anti-virus nor Spybot gets rid of it.

Sounds like you have a nasty case of browser hijacking, a type of spyware that seizes control of a browser to try and peddle dubious products that may themselves install more spyware, even though they are posing as security software. The people who invade computers and browsers in this manner deserve to be locked up.

You can’t get rid of pernicious spyware like this by madly deleting files or changing browser settings. Only a strong anti-spyware program can kill it and prevent it from reappearing. But sometimes you have to try multiple anti-spyware programs to get the job done. You’ve already tried one good one, Spybot, which failed. I suggest you go to Webroot.com and download my favorite anti-spyware program, Spy Sweeper. If that doesn’t work, try Ad-Aware or Counterspy.

I am considering buying a PC with the Windows Media Center operating system. But I am wondering if Media Center will be updated when the new Windows Vista comes out. Should I buy now or wait?

The Media Center flavor of Windows is scheduled to be retired in the fall of 2006, when the new Windows Vista is set to be released. Instead, the key functions of Media Center — including the across-the-room remote control of music, TV, photos and videos — will be folded into some versions of Vista.

If you buy now, and your new machine is hefty enough to run Vista, you should be able to upgrade to the appropriate version of Vista and retain all your Media Center functionality, with some improvements. But you’ll have to pay for the new software.

If you wait 10 months or so, you can buy a new PC pre-loaded with a version of Vista that includes these functions. But you’ll have lost nearly a year of use of the very good Media Center functionality available today. My advice is: If you really need a new PC now, and really want the Media Center functionality now, buy now, and plan to upgrade to Vista later. But, just be sure you get hardware capable of running Vista. For my column on Vista-capable hardware, see: ptech.wsj.com/guide-pc.html.

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Because of the volume of e-mail I receive, I can’t routinely answer individual questions by e-mail, or consult on individual problems or purchasing decisions. I read all questions I receive and select three each week to answer in the column.

Write to Walter S. Mossberg at mossberg@wsj.com