I can't play ANY video or listen ANY mp3. I got the Windows 7, and I was watching vids on youtube until yesterday, but today, NONE of my players in general works (youtube, WMP, Real Player, etc...)! Also, it doesn't help if I use another browser.... HELP! What happens is, I press 'play' on the video and then the window freezes and I just can press the 'x' to close it. Help, thanks A LOT!