It's just simply the game telling you it can't access the drive(saying something like 'Could not validate original CD'), so my first thought was it was my CD drive, maybe an IDE cable, maybe it was just a buggy game that needed patchin', or maybe my CD was bad. It's just that it doesn't give you the dialog window asking you if you want to let the game access the CD-drive or not. It's really not much trouble to hit the allow button when it asks. You can turn that feature off in Vista if you want to. Yeah I hear ya Lethalhamster.I hear that's one of the draw backs for windows Vista is that it ask for authorization to do practically everything.I have XP though so I don't think I will have a problem.I cannot wait for payday Monday.You guys have been a great help!