Thank you, Dorothy. I finally got the prompt to enter the password for "Getting The Most out of The Master Genealogist."
I was also able to use Notepad to save a file as a gedcom and then open it inside TMG. However I am still not too happy because I have about three hundred gedcoms, so it is going to a be a long and tedious task to have to save every one of them in Notepad. Also the gedcom that I was using to test this had a long list of "warnings," even though there is only one couple with only one child in that gedcom.
So I can imagine how many warnings I will be getting with much larger files. Yikes.
So I don't think I will be staying with TMG after all.