Solve : I broke it >.< I don't know how!?

1.	Solve : I broke it >.< I don't know how!?
Answer» I checked to see if ANYONE had this similar problem, it didn't LOOK like it: The sound on my INTERNET is no longer working on Firefox and Explorer. The sound works just fine on Itunes and DVD's. I have googled this issue and still haven't fixed it, things I have done: restarted the computer, downloaded latest versions of Flash, Firefox etc. begged the computer to work. checked the sound settings for the computer (its a DELL desktop, it plays all videos on the internet just fine, but no sound) any suggestions? what OS?I also made SURE Java was enabled and ran a trouble shoot on Audio CodecsWindows XP

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