At last Nvidia have got the link ready for Detonator 4 21.80 for Windows 2000 .

So head on over to Nvidia Win 2000 driver support page

OR Download here Windows 2000 Driver (v21.80) this link is down at the moment but lets see who's the first person to grab these's

Quick note: The Nvidia Windows NT Driver (v21.80) links are now showing...