Me again!

My BB music comes out as mono, not stereo. My right-hand speaker remains silent. In the chord sheet mixer, the Master “r” indicator is inactive. It has to be a BB settings issue, because music from other sources (streaming, cd, etc.) comes out in beautiful stereo.
The Mono/Stereo choice seems to be part of the Audio settings, but I haven’t used Audio because it’s huge, and because I haven’t grasped yet what it means or does in BB.

Is there a simple way to turn my mono playback into stereo playback?

/Bent