All 3D games crash.

[onefish]

All of my 3D games crash within 30 minutes of starting them. This includes Warzone 2100, World of Warcraft, OpenArena.

Video specs are:

description: VGA compatible controller
product: G73 [GeForce 7600 GS]
vendor: nVidia Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a2
width: 32 bits
clock: 66MHz
capabilities: pm agp agp-3.0 vga_controller bus_master cap_list rom
configuration: driver=nvidia latency=248 maxlatency=1 mingnt=5
resources: irq:16 memory:f8000000-f8ffffff memory:e0000000-efffffff memory:f9000000-f9ffffff memory:fa000000-fa01ffff

using Nvidia proprietary drivers:

270.41.06

I have tried the solutions I could find here on the fora to no avail.

I have no error messages to post due to the type of crash, it is a complete freeze up (no response from keyboard, mouse) of the computer, I have to press the reset button. I have checked the above-mentioned games logs, and the error isn't logged either. I am STUMPED. Someone please help. The only thing I can think of is it has something to do with OpenGL.