A lot of times games that were not outfitted to work with Vista will act up with Vista once you upgrade. You can try to see if the developer of the game put out a Vista update for their software. Sometimes that helps.
games worked perfectly on windows xp home before I upgraded
Two things, one, the system runs so much slower with Vista compared to XP (I know mine went from screaming to crying
). Also, it could be the game. I had a whole bunch of software on my computer that isn't compatible with Vista, so I had to actually install Microsoft Virtual PC with XP and use my software with that. Sucks, but ya gotta do what ya gotta do!!!