Nvidia has released the official Forceware 197.45 driver for Windows XP, Vista and 7. These drivers are for GeForce 6, 7, 8, 9, 100, 200, 300 and ION series cards. The main changes in this driver compared to the previous WHQL release are a fix related to Media Player Classic playback, support for the GPU-accelerated features of Adobe CS5, support for the new version of vReveal, as well as Starcraft 2 Beta and DirectX 8 application fixes. The driver package contains the 1.0.9.1 HD Audio driver and the 9.10.0129 PhysX drivers.
See above post for link to drivers