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09-21-2011 02:28 PM
Without more information on hardware setup (where things are plugged in, etc.), I would first recommend that you run this troubleshooter:
If a Windows setting is the culprit, this troubleshooter is very good at identifying and automatically correcting it. The troubleshooter can also identify some hardware problems.
01-22-2013 02:59 AM
Seems like something wrong with your speaker. Check your speaker on another computer to ensure that it is working fine or not. If it is not working, problem with your speaker and need to repair.
Change your default setting for speaker only.