Well, I'm still scratching my head but I did get it to work.
I originally pasted the command into a blank worksheet in my workbook
(I have 4 worksheets going in this workbook).
Anyhow, I tried opening a brand new worksheet and it worked as advertised. Not sure why I couldn't get it to work in the first place. This is how most of my computer/software related issues are resolved.....I eventually get what I want (re-booting is the best tool in my mostly empty diagnostic toolbox), but haven't a clue as to what caused the original problem. Thanks again for you help.