Problems with AC97 PCI sound card

[Francois Fayard <fayard@clipper.ens.fr>]

Hi,

I own a AC97 PCI Audio sound card built in my main board.
I've tried to load the ac97_codec module with modconf.
Here is the list of my modules loaded in my kernel

Module                  Size  Used by
ppp_deflate            38988   1  (autoclean)
bsd_comp                3828   0  (autoclean)
ppp                    20684   2  (autoclean) [ppp_deflate bsd_comp]
slhc                    4436   1  (autoclean) [ppp]
soundcore               2628   0  (autoclean) (unused)
nls_cp437               3904   2  (autoclean)
lockd                  31112   1  (autoclean)
sunrpc                 52420   1  (autoclean) [lockd]
serial                 19564   1  (autoclean)
ac97_codec              7044   0  (unused)
vfat                    9008   1 
unix                   10212  93  (autoclean)

But when I try to play a sound (as root or as user in the audio group) 
with mpg123 I have a:
Can't open /dev/dsp! 

Thanks for your help
Francois
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