Pretty difficult to tell with a static picture. Is it possible to get a one minute video capture? Like this one (http://www.youtube.com/watch?v=Vfos4RHEGzI), I had made the wrong diagnosis but Bryanoid came up the proper one (https://community.sling.com/message/10822#10822). I'm not saying that his symptoms is exactly like yours, just that its pretty difficult to give an accurate diagostics from a static picture.
Btw, mReplay Broadcast (http://www.mreplay.com/broadcast) is a program that record anything displayed on your PC desktop