Computer freezes when watching streaming flash video

[jadeiceman]

I have this problem where my computer freezes when I watch streaming flash video online. It happens fairly quickly when I watch videos on Megavideo.com fullscreen. When it freezes, the sound cuts out, and my Logitech G15's lights turn off, the video on the screen freezes and then pretty much nothing happens after that. It's happened a couple times when I watch fullscreen flash video off Veoh too. No problems watching videos off my computers HDD. I'm not really sure what the problem is. I've tried reinstalling flash player and tried using IE7 instead of Firefox. It freezes pretty much no matter what I try. It doesn't freeze during gaming though. Does anyone have any suggestions?