My gts 250 has been experiencing graphical problems and freezes on the win xp login screen and the picture is really pixelated. This only happens if the Nvidia drivers are installed. I have tried 2 different versions of drivers and a fresh install of windows xp. I have also tried both pcie slots. There was a 8800 gt in it previously but it started having red lines. I think its a hardware issue with the card. Its a BFG so i cant get support. Could i bake the card to fix it?