I'm running a dual-monitor setup, and the second display always does what is in the screenshot. If I disconnect one display, the only connected display starts showing that. I have never seen this before and I have no idea what caused this. The only thing I can say is that this immediately happened upon loading a Flash video in Firefox, but I am unsure if the events are related at all.
The GPU I am running is a Gigabyte 7970, with one display connected via DVI and the other via DVI->Display Port. If you guys require more information, please let me know. Thanks!
I've had this card for nearly a year now with very few problems (the only problems I have had were very infrequent screen flickers, likely due to my overclock). What I got tonight was something, like I said, I have never seen before, period, and I honestly cannot even begin to imagine what caused it. I rechecked all my settings, as you suggested, and everything appears to be normal.
You are right, this card is definitely beginning to worry me. I might RMA it anyways just for that screen flicker problem and see if they accept that..