Model: Diamond Viper V550
Operating System: Windows 2000 (Note: might work with other versions of this os.)
Before downloading: Run Free Scan for Instant Driver Updates
However, this particular file worked much better. It may be a whole different species of "TNT family drivers for Win2K", e.g. I dunno what WHOL or non-WHOL means, or what the "FASTER VGA DRIVER" thing refers to.
But here's the title of the driver. I got it off the "Gainward" homepage.
Nvidia driver update, TNT Series, "Faster VGA Driver (VER 7.97)" -- for Windows 2000 / Win2K