If anyone is having any issues with the latest nvidia drivers then go back and try some others ones.
I started with 266.58 but then wanted to try the latest ones from a few weeks ago with Brink and it didnt run nearly as well (has some error and a crash and also didnt run aswell).
Went back to 266.58 and no issues and back to running very well.
This probably wont help everyone, but if it does a few people then thats good.
Anyways, try a few differnt drivers and see waht works best for your PC, 266.58 just so happens to work the best of the ones ive tried (for me personally).
Just a friendly heads up!