Rick,
Yes, I only have one master speaker which is the front left DSP8000.
Tried the clear button a couple of times, although strangely it was hard to get the master speaker (left front) to show non controller, it was not the case when i used the G68r. But even after the master speaker shows non controller the problem remains.

OZ

808.3, Control 10/twinstore, OPPO BD 83, 621, 861 V6, DSP 8000, DSP 7200HC, DSP 7200