Sometime in the past several days a Debug window showed up while I was working in a notebook...upper right corner.
I have no idea how it was instantiated and I don't know how to remove it.
Any help is appreciated.
In the toolbar, go to:
Evaluation > Debugger
You'll see that it is checked. Click to uncheck it.
That got it. Thanks. Never use it so I am not sure how it got checked. Sleep typing, prbably.
do you have a screenshot?