try uninstalling/re-install your sound card...
you may need the right driver (msoft doesn't always play fair) try Belarc to know which specific driver you need...
having trouble with my computor keeps on crashing when this does this a message pops up (I explore has caused an error in wdmaud.drv.iexplore will now close
If you continue to experience problems try restarting your computor.
An error has occurred in your program
mmtask ( computor is a gateway ev500