Found this while browsing at Warp2Search. It seems that 2 drivers (for use with SOFTIMAGE|XSI and SOFTIMAGE|3D) have been released on the Nvidia website, one for Windows 2000/XP and one for NT4 (both dated 04/03/2002). However, it is unclear which cards the drivers support. In the readme, all cards from TNT to GeForce4 are said to be supported. Wheras, in the .inf file it is implied that only the GeForce2/3/4 and Quatro range of cards are supported. Try at your own risk!
News source: Warp2Search
View: More Information - Nvidia
View: Readme file (28.84 for Windows 2000/XP)
Download: Windows 2K/XP Driver 28.84 (6.30mb)
Download: Windows NT Driver 28.85 (5.72mb)
