problems with nvidia on board sound

hi forum,

I have installed the latest debian from the net on a new PC. Everything works fine except for the sound. I was used to the fact that sound on linux doesn't work right away, but this time I can't get it working after googling and trying.

The symptoms are: the sound card produces strange click like sounds with an creepy extraterrestial echo. The music I play is not recognizable as such.

My sound card is a nvidia on board card (see below),
I have tried with no result:
- kernel boot with no-apic option
- download, make and install of alsa-firmware-1.0.19
- options snd-hda-intel position_fix=1 model=basic

I hope someone can put me on the right track; I have no clue in what direction I have to search for a solution. And I hate to have to install XP again :)

Thanks in advance! Ruud

see the following output for details about my system:
$ uname -a
Linux janus 2.6.26-1-amd64 #1 SMP Sat Jan 10 17:57:00 UTC 2009 x86_64 GNU/Linux

$ lsmod | grep snd
snd_hda_intel 434904 0
snd_pcm_oss 41760 0
snd_mixer_oss 18816 1 snd_pcm_oss
snd_pcm 81672 2 snd_hda_intel,snd_pcm_oss
snd_seq_dummy 7428 0
snd_seq_oss 33152 0
snd_seq_midi 11072 0
snd_rawmidi 26784 1 snd_seq_midi
snd_seq_midi_event 11904 2 snd_seq_oss,snd_seq_midi
snd_seq 54304 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 25744 2 snd_pcm,snd_seq
snd_seq_device 11668 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 63688 9 snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 12064 1 snd
snd_page_alloc 13072 2 snd_hda_intel,snd_pcm

$ /usr/bin/lspci | grep Audio
00:07.0 Audio device: nVidia Corporation Device 0774 (rev a1)

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