I'm playing Frozenbubble in debian under X/Qt, but there is no sound.

Everytime I start, I get:
ALSA lib confmisc.c:672:(nd_func_card_driver) cannot find card '0'
ALSA lib conf.c:3493:(_snd_config_evaluate) function snd_func_card_driver returned error: No such device
ALSA lib confmisc.c:392::(snd_func_concat) error evaluating strings
ALSA lib conf.c.:3493:(_snd_config_evaluate) function snd_func_concat returned error: No such device
and so on...

libsdl is installed. What's the problem?

Is anyone playing frozenbubble under debian with sound?