Promidi, first off thanks very much for trying to help me through this logjam. Much appreciated!
The Midiman driver is the most recent, and just to be sure I re-downloaded it and reinstalled it. But no change to my issues.
I then looked at the sysex data you mentioned, and no nothing is on autosend.
So then for grins (and it has nothing to do with the midi function), I changed the audio driver to a different driver and the problem went away. So then I changed it BACK to Asio and the problem still went away. So to me that's a bug...because I can't think of a good reason why changing the audio driver would effect a midi out signal being sent to my keyboard!
Anyway, long story short I "think" I stumbled on a solution inadvertently. Hopefully it sticks.