I have a weird problem that occurs after waking my sleeping PowerBook, and adjusting the volume. For some reason, instead of the bleeping noise to indicate volume change, i get a quiet clicking sound, that is out of sync with the pressing of the button. I have 1GB of RAM and it occurs even with no applications running. Definately not a shortage of RAM. I've repaired disk permissions, reset PRAM and PMU. Still happens. I have 22 GB left of 80, so it's really not close to being too crammed. Thanks in advance... Rich.