Certain programs have no sound

This is a problem that has been making me nuts for weeks now. One day all sounds disappeared from a few select programs such as Flash Player, Audacity and Clonk.

The weirdest thing is, that when I took the computer to my friend's computer shop, he said he had tested YouTube's sounds and they worked fine. When I try to watch anything on YouTube, or any other Flash-site, no sounds. There is a slight chance he may have been wrong.

Any solution ideas? My OS is Windows XP.

 

Do you download the latest Flash player from Adobe site?

 

Have you tried right-clicking the audio icon and opening volume controls to make sure no particular input is muted?

 

Yes and yes

 

Try to uninstall your audio driverand install it again,cos from this site:http://www.adobe.com/cfusion/webforums/forum/messageview.cfm?catid=184&threadid=977024&enterthread=y
this will fix the problem.

 

Just reinstalled my audio driver a while ago. Didn't help. How can you know that it "will" fix the problem anyways?

 

I don't know,I just read the forum.AND I want to help you.