(sorry to cross post this but I can't figure out how to delete it) I have a legit version of XP Media Center 2005 with all my TV programs and videos stored on a separate harddrive to play on my home theater PC. Last night I did a clean install of a pre-release version of Windows 7 Professional. The system configured perfectly but I ran into a glitch when using Windows 7 Media Center. Several of the TV programs I pre-recorded in MC 2005 give me the message that "the program will not allow copying to another PC for viewing" when I try to play them. Windows 7 apparently sees a new install on the same PC as a different machine and blocks the shows. A bit scary because this means if you're an existing Media Center user you can only watch all your saved TV programs if you do an upgrade, not a clean install. Has Microsoft commented on this?