Black screen in full screen video.
 

I have been searching for a solution to this problem, but with no success.

Apart from not being able to change the resolution (small issue, as it is fairly close), everything seems to be working fine in Win 7 ultimate.

That is until I try to watch video in full screen (youtube and such). When I click the full screen button, the screen just goes black. There is still sound and I can still start/stop the video by clicking the screen. But there is no video, just black screen.

I have tried both aero and basic mode like someone suggested, but it makes no difference.

How do I fix this?