ALSA problems in Debian/unstable

[Stefan.Deibel@t-online.de (Stefan Deibel)]

Hi,
After upgrading to Debian/unstable I want to get sound with ALSA. I install
alsa-source and compiled the alsa-driver for Soundblaster 128 PCI (Ensoni1
1371) it using kernel 2.4.3. After installation lsmod shows

snd-seq-midi            4816   0  (autoclean) (unused)
snd-seq-oss            30400   0  (unused)
snd-seq-midi-event      3520   0  [snd-seq-midi snd-seq-oss]
snd-seq                47360   0  [snd-seq-midi snd-seq-oss
snd-seq-midi-event]
snd-pcm-oss            20176   0  (unused)
snd-pcm-plugin         15920   0  [snd-pcm-oss]
snd-mixer-oss           5216   0  [snd-pcm-oss]
snd-card-ens1371        2384   1 
snd-ens1371            13264   0  [snd-card-ens1371]
snd-pcm                38912   1  [snd-pcm-oss snd-pcm-plugin snd-ens1371]
snd-timer              11040   0  [snd-seq snd-pcm]
snd-ac97-codec         27104   0  [snd-ens1371]
snd-rawmidi            12128   0  [snd-seq-midi snd-ens1371]
snd-seq-device          4528   0  [snd-seq-midi snd-seq-oss snd-seq
snd-rawmidi]snd-mixer              30576   0  [snd-mixer-oss snd-ens1371
snd-ac97-codec]
snd                    45264   4  [snd-seq-midi snd-seq-oss
snd-seq-midi-event snd-seq snd-pcm-oss snd-pcm-plugin snd-mixer-oss
snd-card-ens1371 snd-ens1371 snd-pcm snd-timer snd-ac97-codec snd-rawmidi
snd-seq-device snd-mixer]
soundcore               4112   7  [snd]

This seems to be all right for me but I don't get any sound with aplay. 
I also installed the alsaplayer and alsaplayer-alsa packages. But when I
call alsaplayer from within Gnome's menu
nothing happens. Starting alsaplayer from the terminal yields

	AlsaPlayer 0.99.33-pre2
	(C) 1999 Andy Lo A Foe <andy@alsa-project.org> and others, see
AUTHORS file for details

and nothing happens. 
Does anyone have ideas what is missing?

-- 
Stefan Deibel
Altkönigstraße 5
D-55127 Mainz

Tel. +49(6131) 937390