NVidia drivers and 3D Settings:Power management mode = Adaptive
[oops, orig posted in general]
Just say no. Almost every NVidia driver issue I've ever had has been related to "Adaptive" power management mode.
This also controls the GPU fan, and is probably what causes most peoples overheating issues.
EVERY time I get driver updates from NVidia they reset my global settings to Adaptive
and I have to go in and change them globally and in every profile to "Prefer maximum performance."
So, if you're having any kind of heat/graphic glitch issues, check your setting and make sure
it's NOT Adaptive.