audio dies

when i switch on my computer all sound works fine but randomly sometimes it all stops, often when browsing myspace. and then songs in wmp are playing but not audible.

any thoughts?

restarting is the only way i know to correct this,

 

Download the program from the link below and install it.

http://www.majorgeeks.com/download.php?det=4191

Once installed run it and on the left panel select "Issues". Then towards the middle bottoms click on the button "Scan for Issues". Now a progress bar will show up towards the top. Once finished click on the button "Fix selected issues...". A new dialog opens and just click "Fix all Errors". Once done close everything and see if that fixes your problem. If not let me know.