Something

Running modules-update...
 * Updating /etc/modules.conf ...                                         [ ok ]
 * Updating /etc/modprobe.conf ...                                        [ ok ]
 * Updating modules.dep ...                                               [ ok ]
Loading driver...
 * Loading ALSA modules ...
 *   Loading: snd-card-0 ...
WARNING: Error inserting snd_page_alloc (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd-page-alloc.ko): Invalid module format
WARNING: Error inserting snd (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd.ko): Invalid module format
WARNING: Error inserting snd_timer (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd-timer.ko): Invalid module format
WARNING: Error inserting snd_pcm (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd-pcm.ko): Invalid module format
WARNING: Error inserting snd_ac97_bus (/lib/modules/2.6.19-gentoo-r5/misc/pci/ac97/snd-ac97-bus.ko): Invalid module format
WARNING: Error inserting snd_ac97_codec (/lib/modules/2.6.19-gentoo-r5/misc/pci/ac97/snd-ac97-codec.ko): Invalid module format
FATAL: Error inserting snd_intel8x0 (/lib/modules/2.6.19-gentoo-r5/kernel/sound/pci/snd-intel8x0.ko): Unknown symbol in module, or unknown parameter (se  [ !! ]
 *   Loading: snd-seq-oss ...
WARNING: Error inserting snd (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd.ko): Invalid module format
WARNING: Error inserting snd_timer (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd-timer.ko): Invalid module format
WARNING: Error inserting snd_seq (/lib/modules/2.6.19-gentoo-r5/misc/acore/seq/snd-seq.ko): Invalid module format
WARNING: Error inserting snd_seq_midi_event (/lib/modules/2.6.19-gentoo-r5/misc/acore/seq/snd-seq-midi-event.ko): Invalid module format
WARNING: Error inserting snd_seq_device (/lib/modules/2.6.19-gentoo-r5/misc/acore/seq/snd-seq-device.ko): Invalid module format
WARNING: Error inserting snd_seq_device (/lib/modules/2.6.19-gentoo-r5/kernel/sound/core/seq/snd-seq-device.ko): Unknown symbol in module, or unknown parameter (see dmesg)
FATAL: Error inserting snd_seq_oss (/lib/modules/2.6.19-gentoo-r5/kernel/sound/core/seq/oss/snd-seq-oss.ko): Unknown symbol in module, or unknown parameter (see dmesg)                                                                   [ !! ]
 *   Loading: snd-pcm-oss ...
WARNING: Error inserting snd (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd.ko): Invalid module format
WARNING: Error inserting snd_mixer_oss (/lib/modules/2.6.19-gentoo-r5/misc/acore/oss/snd-mixer-oss.ko): Invalid module format
WARNING: Error inserting snd_page_alloc (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd-page-alloc.ko): Invalid module format
WARNING: Error inserting snd_timer (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd-timer.ko): Invalid module format
WARNING: Error inserting snd_pcm (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd-pcm.ko): Invalid module format
FATAL: Error inserting snd_pcm_oss (/lib/modules/2.6.19-gentoo-r5/kernel/sound/core/oss/snd-pcm-oss.ko): Unknown symbol in module, or unknown parameter (see dmesg)                                                                       [ !! ]
 *   Loading: snd-mixer-oss ...
WARNING: Error inserting snd (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd.ko): Invalid module format
FATAL: Error inserting snd_mixer_oss (/lib/modules/2.6.19-gentoo-r5/kernel/sound/core/oss/snd-mixer-oss.ko): Unknown symbol in module, or unknown parameter (see dmesg)                                                                   [ !! ]
 *   Loading: snd-seq-oss ...
WARNING: Error inserting snd (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd.ko): Invalid module format
WARNING: Error inserting snd_timer (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd-timer.ko): Invalid module format
WARNING: Error inserting snd_seq (/lib/modules/2.6.19-gentoo-r5/misc/acore/seq/snd-seq.ko): Invalid module format
WARNING: Error inserting snd_seq_midi_event (/lib/modules/2.6.19-gentoo-r5/misc/acore/seq/snd-seq-midi-event.ko): Invalid module format
WARNING: Error inserting snd_seq_device (/lib/modules/2.6.19-gentoo-r5/misc/acore/seq/snd-seq-device.ko): Invalid module format
WARNING: Error inserting snd_seq_device (/lib/modules/2.6.19-gentoo-r5/kernel/sound/core/seq/snd-seq-device.ko): Unknown symbol in module, or unknown parameter (see dmesg)
FATAL: Error inserting snd_seq_oss (/lib/modules/2.6.19-gentoo-r5/kernel/sound/core/seq/oss/snd-seq-oss.ko): Unknown symbol in module, or unknown parameter (see dmesg)                                                                   [ !! ]
 *   Loading: snd-pcm-oss ...
WARNING: Error inserting snd (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd.ko): Invalid module format
WARNING: Error inserting snd_mixer_oss (/lib/modules/2.6.19-gentoo-r5/misc/acore/oss/snd-mixer-oss.ko): Invalid module format
WARNING: Error inserting snd_page_alloc (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd-page-alloc.ko): Invalid module format
WARNING: Error inserting snd_timer (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd-timer.ko): Invalid module format
WARNING: Error inserting snd_pcm (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd-pcm.ko): Invalid module format
FATAL: Error inserting snd_pcm_oss (/lib/modules/2.6.19-gentoo-r5/kernel/sound/core/oss/snd-pcm-oss.ko): Unknown symbol in module, or unknown parameter (see dmesg)                                                                       [ !! ]
 *   Loading: snd-mixer-oss ...
WARNING: Error inserting snd (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd.ko): Invalid module format
FATAL: Error inserting snd_mixer_oss (/lib/modules/2.6.19-gentoo-r5/kernel/sound/core/oss/snd-mixer-oss.ko): Unknown symbol in module, or unknown parameter (see dmesg)                                                                   [ !! ]
 *   Loading: snd-seq ...
WARNING: Error inserting snd (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd.ko): Invalid module format
WARNING: Error inserting snd_seq_device (/lib/modules/2.6.19-gentoo-r5/misc/acore/seq/snd-seq-device.ko): Invalid module format
WARNING: Error inserting snd_seq_device (/lib/modules/2.6.19-gentoo-r5/kernel/sound/core/seq/snd-seq-device.ko): Unknown symbol in module, or unknown parameter (see dmesg)
WARNING: Error inserting snd_timer (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd-timer.ko): Invalid module format
FATAL: Error inserting snd_seq (/lib/modules/2.6.19-gentoo-r5/kernel/sound/core/seq/snd-seq.ko): Unknown symbol in module, or unknown parameter (see dme  [ !! ]
 *   Loading: snd-seq ...
WARNING: Error inserting snd_seq_device (/lib/modules/2.6.19-gentoo-r5/misc/acore/seq/snd-seq-device.ko): Invalid module format
WARNING: Error inserting snd_timer (/lib/modules/2.6.19-gentoo-r5/misc/acore/snd-timer.ko): Invalid module format
FATAL: Error inserting snd_seq (/lib/modules/2.6.19-gentoo-r5/kernel/sound/core/seq/snd-seq.ko): Unknown symbol in module, or unknown parameter (see dme  [ !! ]
 * ERROR: Failed to load necessary drivers                                [ ok ]
 * Restoring Mixer Levels ...
 * No mixer config in /etc/asound.state, you have to unmute your card!    [ ok ]
Setting default volumes...
amixer: Mixer attach default error: No such device
Saving the mixer setup used for this in /etc/asound.state.
/usr/sbin/alsactl: save_state:1253: No soundcards found...

===============================================================================

 Now ALSA is ready to use.
 For adjustment of volumes, use your favorite mixer.

 Have a lot of fun!