It's sort of the blind leading the blind, but here goes:
The program is named sndconfig. It is a Red Hat program, but I have used it on Debian distributions. It was a life-saver on a couple of occasions. Here's what I got when I Googled "sndconfig"
Try running sndconfig and see if it a) runs and b) tells you anything useful.
I think you are missing a driver, and sndconfig can help with that. I know that I had many problems with sound until Ubuntu came along, and then they just all went away. I couldn't tell you how my sound card is configured now to save my soul.
Good Luck, and come back if we haven't helped yet.