Whats wrong with my computer??? Well, our speaker were brand new, but the speaker jack had dust in it so the speakers didn't work, and today my Dad went and blew the dust out of them. Now the speakers work only on our county website, they don't work on youtube,myspace,grizzlycentral, or itunes. What could be wrong, they work every time on http://clayberry.org but not anywhere else. Please help.

Have you run a test on the sound card or did a computer diagnostics check? Start there and see if its that or just the speakers. Then check to see if your volume levels are correct. Also try checking if you have a short or the right sound setting for your programs. In sound property's.