Yahoo is not allowing me to reply to the group.
My many thanks to all who have offer suggestions. I will try them later today (Tuesday).
Dave, Menu 56 is set to 9600. I've had no problems with other speeds. Also, my RS-232 cable has worked without a problem for several years and continues to work correctly for other applications as well as all programming software so I don't think that's a problem.
Bill, The radio stays on VFO-A 99.9% of the time.
Dan, I'll change the "Mode Determined by..." later today.
I'll report back this evening on results.
Thanks again to all.