Video error

Hi

I was viewing a Youtube video, and all of the sudden the screen turned a dark green and played only audio. I tried reviewing the video, but nothing changed. I tried watching all kinds of different videos to see if it was some kind of problem with the video, but I had the same problem. I have a Windows 8 computer, I don't know if that helps but... Is there a way I can fix this???:confused::confused:

Thanks