Just got my new card and my computer has yet to fail, BUT - the same graphical issue is appearing on web pages. I attached a crappy cellphone picture to show exactly what I mean. The choppy checker boarding appears whenever scrolling, though it's much more obvious when scrolling fast.
If I run the card alone, nothing changes.
I am running dual monitors normally, the checker boarding does NOT appear on the monitor driven by my old 4850.
Perhaps related to something with my sound. When doing certain actions the audio will sometimes stutter (Ex: dragging a window out of full screen in win 7).
I'm using a usb DAC, all other sound devices are disabled in both sounds control panel and device manage. Also, I did a driver sweeper clean of all audio components.
Edit: forgot to add - "DPC Latency Checker" shows a spike around 20,000 whenever the audio stutters.