nVidia has released a new set of BETA display drivers on nZone, being 81.85. It is mostly just a maintenance driver to fix up a few issues with the previous release which improved performance quite a lot.
You'll find drivers versions for desktop and notebooks (Go 7800GTX only) at this page on nZone.
• Compatibility fixes since 81.84 BETA driver. For a full list of fixed and known issues please view the Release Notes.
• Mixed vendor support for NVIDIA SLI.
• TV-Out/HD-out support for NVIDIA SLI.
• Added support for VSync on Direct3D games when running NVIDIA SLI.
• Performance enhancements for dual-core CPUs.
• PureVideo high definition MPEG-2 de-interlacing support.
• Usability enhancements when connecting to an HDTV.
• Microsoft® DirectX® 9.0c and OpenGL® 2.0 support