I got exactly the same problem as the guy starting this threat.

I attempt to run a game, and it goes all crazy. I've just updated to windows VISTA from a former XP where everything worked fine, I also have the latest drivers, tried Beta versions, have the newest DirectX, baseicly everything is up to date.

Only game that doesn't do this is my Wold of Warcraft that runs on some previous settings from my XP, everything on max and running as Windowed Full Screened.