Duoble check the control panel and go into the sound properties. There's a bunch of volume controls in different tabs that you can play with. Make sure nothing's muted and the actual speaker volume is up. Sometime, the software that goes with the drivers have their own separate sound control. They usually integrate it with Windows sound control, but sometime they don't. Double check the player volume level too.
*Fact: Microsoft Window's Blue Screen of Death vs Computerforums.org's White Screen of Death. Which is worse?