I apprieciate all the advice and help. I'll keep piddling with it, and trying anything to make it work. Maybe Nvidia will come up with a driver or something.
I have no problems with other games, Oblivion, Medieval 2, etc.., it's just this sim that gives me trouble. Sucks that I love it. Guess I'll go back to SH3 inbetween ramming my head into a wall.
I'll keep checking this thread for a solution. Thanks again guys.
edit: Monolith, I have a 450 power supply, this rig is less than 3 months old.