Any driver accepted from Microsoft? (nod to Jimmy)
It's one of the common issues I see along with ANY "codec" or player download. That is, if any site tells you to download more than Adobe's own Flash to play video or the player is not from the known site you may be installing a Trojan.
So it's usually something along those lines if the hardware is good. Start scanning with what Grif notes at
http://forums.cnet.com/7726-6122_102-5509131.html?tag=posts;msg5509131
Bob
I have a toshiba satellite computer and recently online videos won't play. There is sound but just a black square where the video should be playing. Anything not online plays fine, for example movies on VLC media player. It just happened recently and i can't think of anything that i've done that would have caused this to happen. Also I am using google chrome but videos also don't work properly on internet explorer. Any help I could get concerning this situation would be greatly appreciated.
Thankyou.

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