Thanks Warp2search for this one. Sten Uusvali's Windows 2000/XP NVidia Refresh Rate Fix provides fix for the default 60Hz refresh rate under Windows XP and Windows 2000 with NVidia display adapters.
You only need to run this program once after you have installed (or reinstalled) your display adapter drivers. No other procedures are necessary...
Updated:
Modifications to the driver detection engine
Support for updating the device list from a file or from the Internet
More WinXP'fied user interface
Lifted restrictions for specific Windows versions
Registry backup will be saved with driver version in the file name
Download: Nvidia RefreshRate Fix 2.1 Build 167
