I just built a new computer, a gaming machine. This problem cropped up about a week after we got it up. I went into the registry and set the TDR values to 0 instead of the default 2. Before that I ran the fix-it on Microsofts website and it set those values
to 8, it did nothing. Setting the values to 0 helped a lot but still does it. I see this is a problem with all kinds of machines so it's the fault of something in windows. Perhaps some of you might fix yours by setting those values to 0. It is annoying to
say the least. One other thing, on my machine playing games it never happens. I am going to increase the voltage to the gpu and see what happens.