Thanks,
George's approach worked, but now have a bit of work to do as I reconstruct some things I had.
Bruce, after copying the previous contents back into Library/Mathematica, I tried your approach two different ways. I tried the shift-launch, but that didn't eliminate the problem. I also tried removing Library/FrontEnd/10.0 Caches/ and that didn't work either. I also tried the delete-output reevaluate and that didn't solve it either.
I have a working solution, but the puzzle remains for another day.
Thanks, Craig