GeForce 256 underclocking
Well, I finally adjusted my GeForce 256 card to work right for Windows 2000. It had been overheating at the factory set clock speed under Quake 3. I guess I picked up a lemon. Oh well, I found a tool that allows me to unlock the dialog for the NVidia driver that lets me adjust the core and memory clock speeds on the card. Dropped it down by 5 MHz or so and now it works like a charm, just like it did with Windows 98. I run Quake 3 at 800x600 and for the maps I play, that provides 80 FPS or so. Not bad.