NVIDIA has released new 163.44 beta drivers
 

This driver supports single GPU and NVIDIA SLI™ technology on DirectX 9, DirectX 10, and OpenGL for GeForce 6, 7, and 8 series GPUs. Improved compatibility for Bioshock. Added HD video post-processing for H.264, VC-1 and MPEG-2 HD content on GeForce 8500 series products. Numerous game and application compatibility fixes.

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