On Tue, 9 Feb 2010, Martin (KDE) wrote: > Most likely this is a pulseAudio thing. I f you want to reset the volume > slider, start pavucontrol and set the volume to a value you want. > pulseAudio has the big advantage of setting volume for every program by > its own. It looks like my problem was indeed a pulseAudio feature. In pavucontrol I found a slider for "System Sounds" that was set to 90%. (I have no idea of how it got set that way to begin with; I don't recall ever changing volumes in pavucontrol.) Increasing it to 100% eliminated the master volume level changes. Problem solved! Thanks, Dave -- Dave Ulrick Email: d-ulrick at comcast.net