Please, help us out!!!
I'm one more having the same problem: semi-random display lockups (only mouse working in froze screen, unique solution - reboot), eventhought have different soft and hardware components: GeForce2MX, RH8-KDE,Pentium4 1.5GHz, 256RAM.
...And once after a long lockup in linux I rebooted to winxp and it just lockup also there (as occurred with somebody else here)....
Plese Help us out!!! nVidia or anybody!