After a few seconds of inactivity, a blue overlay appears over all video and some animated gifs. This occurs in video players, browsers, games, etc. Also happens with or without Catalyst (latest or older, AMD or Gigabyte) drivers installed. When I scroll the screen, the overlay disappears then reappears when it sits idle again.
Interestingly, I have a VirtualBox installed with Windows 7, and the issue appears there as well.
I have tried to take video and screenshots, but the overlay is not captured.
Makes me think that DirectX11 is not playing nicely with the Gigabyte 7870 cards. Any ideas?