There was a size limit with early versions of XP, which is what you're probably running into if you using the original install disc. How are you installing Vista? If from a disc, just point Vista to the drive as part of the install and it will format it for you. Otherwise, assuming you're running XP with Service Pack 3, just format it from inside of Windows.

I reformatted the My Book - which went smoothly. The copied a short video. Again - worked well. Now I'm copying a whole bunch of videos - and it's taking time. I'm copying about 10-15 hours of standard definition tv shows. So far, it's been over an hour. I have no idea how long it will take via USB2 connection. The 30 minute video took less than 5 minutes. I have follow-up questions. I wonder what the best way is to back up these files. I just opened up My Documents and right-clicked one at a time - then chose the option to "send to" and selected drive e: my book. I'm sure there's a better way to do this, but I don't know what it is. I tried to highlight more than one file at a time (using the shift key) - but it didn't seem to want to let me highlight more than one at a time. I also wonder if I send a file to MY Book - does that mean it's moved to My Book and the original isn't on my PC - or is it copied there? Raven - I know I should know this by now, but I don't. How do I find my firefox profiles and bookmarks files so I can copy them to the external drive? Lastly, is there a way to copy files to the external drive in such a way that I can get prompted if the file already exists? so I don't make a copy and have 2 copies in there? with many files (like pictures), I may get a prompt that says the file already exists - should I overwrite it or skip. Is there anything like that when copying files to the external drive? At some point, should I bite the bullet and buy a software program to do this. Western Digital tries to give trial periods for the following software : Memeo Autobackup, Memeo Autosync. Any reason to get these? Or any other software? Also, when I reformatted the drive, it wiped the drive clean. Is there anything (drivers, software?) I would need to download from Western Digital (to replace anything I might have erased). I know that the proprietary software that's sometimes loaded with these things (like cameras, printers) may not be necessary at all. Thanks. Lynn.

lyban- That's a good choice...even for people who are computer savvy. External hard drives are not very expensive and not having to switch back and forth is a good thing. Take a look at the Toshiba external drives on Amazon...they get consistently ggod reviews and the setup is essentially automatic.

Many thanks, everybody, for your advice! That does help a lot. Yes, my photo files do seem to be saved, as they are still there when I turn the drive off and back on. Actually, once I turn the drive off the little "safely remove hardware" icon disappears from my computer screen. So I suspect it's only available when the computer can detect extra hardware plugged in. So is it okay to remove the drive from the computer, as long as the drive is turned off, without going through that "safely remove" thing first? To answer some of your questions, no, there was no pamphlet included with the drive so I didn't get the key code. It is a 500 GB drive and I think it was about 99 dollars that I paid for it. Though, as there was actually only 465 GB free on it, I knew there must be something else on there somewhere--even if it wasn't showing up! I had looked at the Seagate web site before, and I think I saw something on there which said they would send you the software if you gave them the serial number of the drive and a little other information. Though, at the time, I thought they met the installation software and I didn't think I needed that, as it had installed okay. So maybe I'll look into that--or demand a pamphlet from the seller!