I tried using the new nvidia drivers but they totally screwed up my display. The colors, contrast, and brightness were all out of whack and I couldn't get them right. Also, whenever I played a movie I had to open up the control panel and keep it open, or the movie would be a very dark reddish color. Not to mention the "new nvidia control panel" has no freakin' options at all, and the optimized driver brings back the old cp.
If you know any other types of optimized drivers I'm willing to try them though. Until nvidia releases a new version, I technically can't go back.