Same here.
I tried all of the above fixes without luck.
The only way to clear the lock-ups was to turn the graphics acceleration down almost all the way, but then nothing would run in 3d.
I really like the new OS but I would like to use my GeForce 3!
CornDog
Abit KT7-Raid
AMD 1.3 Ghz
256 MB Ram
VisionTek Geforce 3
72x Kenwood Cd-Rom
12x8x32 Acer burner
WinTV Go
NetGear Nic