[YA] SBLive 5.1 but no sound (ALSA)

[Hamilcar Barca <f4b64lm02@sneakemail.com>]

I tired of my built-in VIA 8235 sound, and bought a "Soundblaster live
5.1".  The card is functional in this machine under Windows 2000.  
However, I can't get any sound through ALSA 1.0.4 under kernel
v2.4.26 (plus GNOME 2.4.)

I did the following:

* Installed the alsa-source, alsa-base, and alsa-utils packages 
  (all 1.0.4).

* Ran 

    dpkg-reconfigure alsa-source

  and selected emu10k1.

* In the ALSA directory, ran 

    ./configure --with-oss=yes --with-cards=emu10k1

* In /usr/src/linux, ran

    make-dpkg kernel_image modules_image

  installed, and rebooted.

* The following modules are now loaded (I removed the 
  lists of dependencies)

    snd-seq-midi            3904   0 (autoclean)
    snd-emu10k1-synth       4732   0 (autoclean)
    snd-emux-synth         29020   0 (autoclean)
    snd-seq-midi-emul       4928   0 (autoclean)
    snd-seq-virmidi         3256   0 (autoclean)
    snd-seq-oss            28640   0 (autoclean)
    snd-seq-midi-event      3328   0 (autoclean)
    snd-seq                36336   2 (autoclean)
    snd-emu10k1            74372   4 (autoclean)
    snd-pcm-oss            38020   1 (autoclean)
    snd-mixer-oss          13560   1 (autoclean)
    snd-pcm                59620   0 (autoclean)
    snd-timer              14404   0 (autoclean)
    snd-hwdep               5216   0 (autoclean)
    snd-page-alloc          6388   0 (autoclean)
    snd-util-mem            1280   0 (autoclean)
    snd-ac97-codec         49340   0 (autoclean)
    snd-rawmidi            13536   0 (autoclean)
    snd-seq-device          4224   0 (autoclean)
    snd                    31812   2 (autoclean)
    soundcore               3652  10 (autoclean)

* I started 'gnome-alsamixer', pushed all the controls to their 
  maximum and unmuted everything.

UNFORTUNATELY, I don't get any GNOME system sounds, or sounds from ZINF or
even the (command-line) 'play' program.

What can I try next?