by icecube » Sun Apr 29, 2007 3:16 am
I am assuming that you meant "plays through both speakers" not "sound cards."
Right Click on "My Computer" and left click on Properties and select the Device Manager Tab.
Check for yellow flags. You might have an IRQ conflict. Sound usually wants 3,5, or 7. Installing a modem, nic, printer or USB pen drive could be the culprit.