If you look at the device list, are you even recognizing your sound devices? It is likely a driver issue, but without further information, there are 1000 reasons this could happen.
what is th name of your drivers is your sound card on your motherboard if so goto the web site of your motherboard
and down the driver from the web site
No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.