sounc card detection on FC7

[Bonapon]

My newly installed FC7 doesn't detect my SBlive sound card.
Here is the message when I go to system-preferences-hardware-sound and try the different tests:
audiotestsrc wave=sine freq=512 : audioconvert ! audioresample ! gconfaudiosink: Internal GStreamer error: state change failed.

audiotestsrc wave=sine freq=512 : audioconvert ! audioresample ! gconfaudiosink profile=music: Internal GStreamer error: state change failed.

audiotestsrc wave=sine freq=512 : audioconvert ! audioresample ! gconfaudiosink profile=chat: Internal GStreamer error: state change failed.

Alsamixer gives me:
Card: USB Device 0x46d:0x8c2
Chip: USB Mixer

/sbin/lsmod|grep '^snd'
snd_emu10k1_synth 9793 0
snd_emux_synth 31937 1 snd_emu10k1_synth
snd_seq_virmidi 8897 1 snd_emux_synth
snd_seq_midi_emul 9025 1 snd_emux_synth
snd_emu10k1 120929 1 snd_emu10k1_synth
snd_ac97_codec 91749 1 snd_emu10k1
snd_seq_dummy 6725 0
snd_usb_audio 74305 2
snd_seq_oss 29889 0
snd_seq_midi_event 9665 2 snd_seq_virmidi,snd_seq_oss
snd_seq 44721 8 snd_emux_synth,snd_seq_virmidi,snd_seq_midi_emul,s nd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_pcm_oss 38337 0
snd_mixer_oss 16577 1 snd_pcm_oss
snd_pcm 64069 4 snd_emu10k1,snd_ac97_codec,snd_usb_audio,snd_pcm_o ss
snd_usb_lib 16961 1 snd_usb_audio
snd_timer 20421 3 snd_emu10k1,snd_seq,snd_pcm
snd_page_alloc 11209 2 snd_emu10k1,snd_pcm
snd_rawmidi 21185 3 snd_seq_virmidi,snd_emu10k1,snd_usb_lib
snd_seq_device 9933 7 snd_emu10k1_synth,snd_emux_synth,snd_emu10k1,snd_s eq_dummy,snd_seq_oss,snd_seq,snd_rawmidi
snd_util_mem 7361 2 snd_emux_synth,snd_emu10k1
snd_hwdep 10309 3 snd_emux_synth,snd_emu10k1,snd_usb_audio
snd 43205 18 snd_emux_synth,snd_seq_virmidi,snd_emu10k1,snd_ac9 7_codec,snd_usb_audio,snd_seq_oss,snd_seq,snd_pcm_ oss,snd_mixer_oss,snd_pcm,snd_timer,snd_rawmidi,sn d_seq_device,snd_hwdep

ls -l /dev/snd/
total 0
crw-rw----+ 1 gillesg root 116, 5 2007-10-31 07:46 controlC0
crw-rw----+ 1 gillesg root 116, 4 2007-10-31 07:46 pcmC0D0c
crw-rw----+ 1 gillesg root 116, 3 2007-10-31 07:46 seq
crw-rw----+ 1 gillesg root 116, 2 2007-10-31 07:46 timer

Please help.

By the way, I do have the NVidia rpm installed for my graphics card, if that helps.

[huno]

did you configure the kernel ?
did it works before ?

[Bonapon]

This morning (after booting?) the card is detected by alsamixer.
│ Card: SB Live 5.1
│ Chip: SigmaTel STAC9708,11
I opened audacity, which I really like. Finally, I found that by choosing line in the drop down at the end of the icones, I can now record.
So problem solved.
Thanks for responding. Your encouragement was morally very helpful.
Sometimes, alone with my linux box, I feel isolated and don't try different things as much as I should. That's why your response was so encouraging. Thanks again.