I recently changed my soundcard. The current is an integraded one (hda-intel). 
After the change, I did a kernel upgrade and now sound doesn t work.
Specifically, the kernel modules are not loading ... I get this message from
/sbin/service alsasound start


Starting sound driver: snd-hda-intel WARNING: Error inserting snd
(/lib/modules/2.6.9-55.0.6.ELsmp/acore/snd.ko): Unknown symbol in module, or
unknown parameter (see dmesg)
WARNING: Error inserting snd_timer
(/lib/modules/2.6.9-55.0.6.ELsmp/acore/snd-timer.ko): Unknown symbol in
module, or unknown parameter (see dmesg)
WARNING: Error inserting snd (/lib/modules/2.6.9-55.0.6.ELsmp/acore/snd.ko):
Unknown symbol in module, or unknown parameter (see dmesg)
WARNING: Error inserting snd_timer
(/lib/modules/2.6.9-55.0.6.ELsmp/acore/snd-timer.ko): Unknown symbol in
module, or unknown parameter (see dmesg)
FATAL: Error inserting snd_pcm
(/lib/modules/2.6.9-55.0.6.ELsmp/acore/snd-pcm.ko): Unknown symbol in
module, or unknown parameter (see dmesg)
WARNING: Error running install command for snd_pcm
FATAL: Error inserting snd_hda_intel
(/lib/modules/2.6.9-55.0.6.ELsmp/pci/hda/snd-hda-intel.ko): Unknown symbol
in module, or unknown parameter (see dmesg)
done

from ATrpm: alsa-kmdl-2.6.9-55.0.6.ELsmp-1.0.13-57.el4.x86_64
            alsa-driver-1.0.13-57.el4.x86_64

alsaconf did its job correctly I think. What's the problem? SL 4.4

Cheers,
Gilberto Medeiros