Fullscreen Problem - Macbook Pro

Hey Everyone!

Every time I am about watch a video in fullscreen - it could be a YouTube video (Safari and Chrome as well) or a Quick Time movie or just hitting the fullscreen button on an app. - the device craches, the screen freezes, the sound goes on.

I've been experiencing this issue since I've installed iTunes 11. (Don't know if it matters or not.)

There is one exception. It's VLC player. I had experienced nothing, it is totally all right with the fullscreen mode.

If anyone has the same issue or knows a solution, please comment.