Did you use the CD that came with the sound card to reinstall it (and did you remove the device in Add/Remove hardware or the device manager first?)
You may have to go to the manufacturer's website for updated drivers.
Look in the device manager and see if anything related to sound has a red or yellow warning mark. Open the "trees" where applicable.
Delete anything that has such a warning, reboot and let Windows discover new equipment and install it.
Edited by Enthusiast, 07 March 2006 - 12:42 PM.