Richard,

Here's how I would approach the problem.

1. Try only software OpenGL and see if you can make it crash, if so then
2. Try wireframe (no OpenGL) and see if you can make it crash, if so then
3. Try checking memory and/or temperature.

If it does not crash with software OpenGL, then check your video drivers-- they may need updating. Also, you can try turning down the threshold of your video acceleration.

I typically try first to find a mode where it doesn't crash, then start adding things back, like video acceleration, OpenGL, etc..

Hope it helps.

best,
Chipp