When you say "newest drivers", do you mean the 66.97 drivers? The ones you can download from Nvidia right now? Dont use them. Unless you have a 6600 or better, that needs these new drivers, stay with the 61.77 drivers. No one I know with one of the 5xxx series Nvidia cards is having good luck with the newest drivers. I've tried the last few days running them myself, and its constant lockups, crashes, and even a BSOD in WindowsXP. I rolled mine back to the older ones last night, finally deciding settings have nothing to do with it. There's just flat out an incompatibility somewhere with these drivers.