Thanks for your suggestions... When I run "alsaconf" it finds the HDSP just fine, but when it tries to bring up the volume, I get this message: Starting sound driver snd-hdsp Hint: insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters. You may find more information in syslog or the output from dmesg /lib/modules/2.4.20-18.1.caps/kernel/sound/snd-hdsp.o: init_module: No such device /lib/modules/2.4.20-18.1.caps/kernel/sound/snd-hdsp.o: insmod /lib/modules/2.4.20-18.1.caps/kernel/sound/snd-hdsp.o failed /lib/modules/2.4.20-18.1.caps/kernel/sound/snd-hdsp.o: insmod snd-hdsp failed [FAILED] Starting sequencer [ OK ] Restoring sound driver settings /usr/sbin/alsactl: load_state:1121: No soundcards found... [FAILED] After that an lsmod shows no snd-hdsp. Any idea what could cause this or how to go about solving it? Thanks, Matt Barber