Hi JackBits, thanks again for your reply.

This is how I would describe the crash: The screen flickers black for a moment and then back to the desktop, there's then a pop up that says something along the lines of "Your display driver crashed and has recovered...".

The fans are running fine on auto-fan and the temperatures are good (~70 degrees) when it crashes, it doesn't seem to be temperature related. It's not overclocked (stock 925/1250), but I've tried lowering the clock speeds and it still crashes the display driver. I've also tried playing with the intensity with no success. The power has not been disturbed and I've checked on it to make sure.

I've tried reinstalling the drivers, I will reseat them and then reinstall both cgminer and the drivers and then report back. As I said it's very strange as nothing has changed as far as I can tell, and they've been running fine for over a week or so on intensity 19 and with various overclocks. It seems I can't post outside of the newbie section of the forum yet.

Again, thanks.