Re: Geforce Go 7950 GTX stability problems
I tracked down a notebook with a GeForce Go 7950 GTX, and didn't run into any corruption while X was running. This problem appears to be specific to your environment/notebook. Unfortunately, I do not have any Rock laptops here to test with.
With respect to the instability, if you could isolate it down to specific applications or reproduction steps, I could look into that further.