probably errors opening /dev/dsp, not too sure as I don't have Q3a for linux, but I had similar experiences with NQ and Q2..
here's what I did (taken actually from the Alsa-Project documentation...)
echo "binary_name 0 0 direct" > /proc/asound/card0/pcm0p/oss
but well, that's for alsasound modules... you might need to find your own soundcard in /proc
try it that way (or consult the sound driver docs for any kind of help on this)
Anyways, my guesses are that Q3a wants to open /dev/dsp using mmap, and can't get the right permissions....