NVIDIA GeForce 197.45 WHQL Video Card Drivers for Download
NVIDIA today released two beta GeForce driver packages, 197.75 beta for GeForce 400 series products, and 197.57 beta for GeForce 6 series thru GeForce 300 series. While these drivers don't come with big lists of changes, NVIDIA recommends that you use these drivers to play the beta release of APB (All Points Bulletin).
Grab them from here - http://www.nvidia.com/Download/Find.aspx?lang=en-us