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