Nick Gammon said
Did you start multiple instances of the IDE? Or just multiple windows? I started two instances and could set one to COM1 and one to COM2. Not that I tried plugging the board in.
Right on Nick, I had not known that starting new windows from the IDE did not start a new instance. It was not readily apparent that that was what was happening. That was exactly what I was doing. Boy, that is going to save me many headaches! Thanks a bunch!
Grumpy_Mike, I don't think I'll ever get THAT high.