Sorry I'm at work and can't remember the version number, but I just went nvidia.com and used their automatic update feature that works out what graphics card you have and downloads and installs the latest version of the drivers. I'm using a GF 7900GS 256MB card.nvidia.
Go here:
http://www.nvidia.com/Download/index.aspx?lang=en-us
Then select option 2 to automatically find the drivers. If that doesn't work use Option 1 to find the right driver for your card.