Problem: 7950 HDMI black screen - invalid format

[Gastly88]

Hello to all.I have a problem with the game,use an HDMI cable and when I startit shows me a black screen with the inscription Invalid Format. My pc - http://www.gastly.co.nf ; Is there any solution? I read a few threads of people having the same problem, but could not find a workable solution. I use Windows 8.1

Video with the problem - http://www.youtube.com/watch?v=dHMbQeP2XFA