I have this card and the games are starting to pixelate during game play. I was in a Madden tournament when it happened. I want to know what causes this? Is the card going bad, and if so, what would be a good replacement? It's about 4 or 5 years old, and hasn't caused any problems until now. I was looking at a Geforce 8800GTS 512mb or a Radeon HD 3870 512mb, GDDR4 PCI-e as a replacement. I'm running a P4 3.2 ghz, with XP Media Center Edition 2003, with a gig of PC3200 DDRam. Any suggestions would be appreciated.