ack

I recently upgraded to windows 7 from vista. The upgrade went smoothly and i've installed all the latest updates. Everything works fine except for playing media files (usually they won't open at all and if they do they will freeze somewhere while its playing) and trying to watch videos on facebook or youtube in a web browser usually freeze as well (i was using firefox as my original browser but after that wouldn't work i tried IE, chrome, and safari and they all do the same thing.

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