Hi!
I have almost the same problem.I have read the answer but I did not succed to solve my problem.
I wrote to console xmms then
Code:
apt-get install xmms-arts
While booting I have seen my sound card.It is recognized.I have no sound.I tried to install from soundcard configuration first auto then no sound and manuel configuration again no sound.

I have sound card Intel corp I82801DB AC"97 driver i810_audio

I will be very happy if I solve my problem.
Thanks a lot.