Don,
Things are looking a little better. Another interesting finding - when I use any control map other than 0 the weird sound problem goes away. I am experimenting with all the control maps now that I know how to change them and reset them.

I wonder if I setup say 10 control maps with voices on all 8 of the buttons and overwrite the control maps on the controller if that would work. Also, I wonder if they would have to be reloaded with each power-off power on event????

Deane