Thanks for the informative reply. I'm happy to report that we're no longer experiencing any errors.
COULD NOT DUPLICATE the reported error regarding the whisper command not working when clicking on a user's name while they are in the same chatroom
first: In case you were not aware, you can quote passages from by reply by highlighting the text with your mouse (as if you wanted to copy it) and then using the small tooltip that pops up. By replying inline with bold text you're making it hard for me to reply you, because that feature is disabled within quotes.
I knew that, but was in a bit of a hurry and not thinking clearly. Did not know bold text feature was disabled within quotes. Once again I come away better informed.
Thanks again for the all your help.