Replying to Videos not playing on Google Chrome.

I just recently got google chrome, and all of a sudden, i open up youtube, and it shows the video thumbnail, ok, normal, but then I click on play and it proceeds to show a white screen while the audio plays in the background. This is not just on YouTube however, but all sites with videos, and is really frustrating. I was wondering if anybody has had this happen to them before, and how they fixed it? +k will be awarded generously as always