no sound youtube.com but external youtube vids do have sound...

just like the title says..

when i go to youtube.com i can't get sound from over there.. but when i watch youtube vids from a external website.. it does have sound.. now..

i;ve already tried changing things in the midi setup.. doesn't work..
i've already disposed a few audio apps.. didn't work..
already installed new flashplayer.. upgraded browser etc..

still not working.. if anyone can help me.. please let me know..

thanks in advanced..

kind regards

I'm not sure I know what you mean by external website. If you try another browser does youtube behave?