I had played through act I with sluggish performance on my GeForce DDR thinking the game just needed patched. as we all know, that didn't help.
luckily, i have a voodoo 3000 PCI running a secondary monitor. i set it as my primary and it's smooth as silk using D3D. geforce and win2k is definitely a bad idea playing D2.
for win2k users unsing only a nvidia card you may want to consider picking up a voodoo pci as a secondary. even is you can't afford a monitor right now the card should be <$100 and i've found it runs a slew of games better than the geforce (even though it has more mem) under this OS.
fwiw - deus ex seems to suffer the same nvidia + win2k plague. voodoo is fine though. don't get me wrong, for Q3 the geforce is the only way to go!
[This message has been edited by Thelonious (edited 22 July 2000).]