a frnd was playing doom3 demo on his amd 2000+ 256mb with fx5200 card in low settings and turned off eye candy stuff . i was able to play the first level , but when he enters the next level the game just comes back to the main menu . i checked his card and dx , everything is fine and game runs well in first level . is it a prob with the setup ? or card problem . anyone else running doom3 on fx5200 ???