Ok so I've been searching through the forums and trying to figure out what the difference between Upgrade and Archive and Install are. As I understand it, Upgrade does just that: upgrades your computer to Leopard while leaving all your files in place. Now, does Archive and Install do the same thing as upgrade, but make an extra copy of your files in case something goes wrong... or does it create a separate folder with your files, installs Leopard, and then forces you to fix all your files again (as in, would my songs still be in iTunes with all my playlists and play counts, or would I have to put them back into the program?). If you could help me clear up this confusion, it would be greatly appreciated. Thanks!