I have the same problem as you. XP and 2k freeze whenever video comes into play. Neither games nor movies work in either OS. When I tried to load a game/movie, the screen goes black and 2 pixels appear in the upperleft corner of the screen. When I restart XP, I get a message stating there's an error with my nvidia drivers. I tried installing all the different drivers there are for XP and it still happens. I have a 600mhz duron, abit kt7-raid, geforce 2 mx, and soundblaster live!. There's seems to be a problem with the nvidia drivers and the NT kernel. Also, If I try to use DxDiag, an error pops up saying there's a problem with my DirectDraw.