Re: Problem: video driver restarts; system: Latitude E6510, i7-720, FHD (1920x1080 display), 3100M, Win7Pro x64,
In my case, at least, it seems that replacing the motherboard did NOT help. Although it has not yet gone so far as the black-screen-video-driver restart, I am still seeing several-second-long pauses in screen updates when the cursor doesn't move and the clock's display freezes. I suspect it's only a matter of time before one of them is long enough to trigger an automatic video restart.
My next step will be a full reinstall of Win7 from scratch, omitting drivers and software for the features that I don't have or don't plan to ever use. I'm hoping to do that this afternoon.