Hi emailphil04,
So title blocks use text styles just as revision blocks do.
I'm guessing based on the other thread, that some change was made to a text style while updating some other drawing element, and it updated the title block as well.
When we create a new text field in a title block we can choose which text style it uses. When we edit that text object we can override the style and change font, size, and so on, but we can not change the style used (I'm not sure why?).
In this video an existing title block text object is edited and the style is overridden for that object. Then a new text object is created, the text style is set and the style is modified.
You'll need to determine what is needed, but this should show you the options.
I hope this helps.
Best of luck to you in all of your Inventor pursuits,
Curtis
http://inventortrenches.blogspot.com