It does this when I watch videos in Steam, and sometimes when I play games. Both of the monitors will do it sometimes. They are both plugged into my GPU (MSI 280x) and I do have the integrated GPU in my i7 enabled.
https://www.dropbox.com/s/cn51bj92snhxt8g/2013-11-28%2010.45.45.jpg
It sometimes goes away when I close the program, but usually have to restart.
https://www.dropbox.com/s/cn51bj92snhxt8g/2013-11-28%2010.45.45.jpg
It sometimes goes away when I close the program, but usually have to restart.