HEY.... I found it. I have no idea what this setting was/is supposed to do. I'll go look it up in the manual at some point, but here's the answer.
On the 5th page of the MOVIE settings, MOVIE SILENT CONTROL as ON. As soon as I changed that to OFF, everything came back... full control as I would expect.
What is THAT about?!?!?
Thx.
JMW