Open the sound mixer, that's the speaker icon near the clock in your taskbar, and make sure that your sources are not muted, and the volume sliders are not all the way to minimum.
Shelly I've done that one. When to the drive and updated driver. I answered your other question on the other message board. I'm just learning how to use this site so be patience with me
What about the other side of this issue? Have you plugged your speakers into a Walkman or other audio device to verify that they work? You could also try plugging some headphones into the speaker jack on the sound card.