So, I recently wiped my system and installed windows xp again. Everything was looking all well and good till I tried to play the bioshock demo. It 'works' but something is seriously wrong and it is clear that some part of the video is hosed. I havent installed too many games, but the original hl stuff works fine and new stuff like flatout and bioshock do not. I installed the newest drivers for my card too, so I'm not sure what it could be. I have a 6800gt if that even matters.