Okay, story so far.
I downloaded the CMBB demo, and install it. Go to run it, and get....
Horrible stuttering. Something like 1 second of being able to do something, followed by 5 seconds of lockup. Totally unplayable, obviously.
I've got a Geforce 4 (Ti 4200), so the card should be able to keep up...
Okay, come on here poke around a bit. Use NVCleaner, and downgrade to the 30.82 drivers (From 41.03).
Now the situation is WORSE!
Now, immesiatbly after entering the 3d environment, my machine lockups up, and reboots a few seconds later.
Help!