Sorry, your apology is not accepted, as it was not needed. So there! (Almost forget, thanks, accepted in the spirit in which it was offered.)
As to your questions: Yes, I used Add/Remove to delete FF, then removed the entire program folder structure.
After reinstalling FF, I then tried the existing test profile; when that did not help, I deleted it, including its files, and created a new one; thus, I have tested WMP not only with an entirely clean program installation, but also with a profile that was created after the new, clean program installation.
As for not giving up, that's too easy: Vincere est totum - To win is everything. (I'm with you on not giving up: One of my finest achievements was getting the U.S. Fire Administrator to completely change direction on the use of a multi-million dollar Federal grant, then, for the revised use of that grant money, to defeat the largest fire protection organization in the country on how they wanted the testing involved in the project to be done, etc. Not bad for someone with an academic background in medieval studies!)
