This is the kind of problem that Word saves for a deadline...
I'm using a fairly new template but it seemed to work fine recently. The continuation (second) line of all Heading 2's is blank, and no paragraph symbol appears at the end of the heading.

The style definition has the following entries on the Paragraph> Indents and Spacing window:

Indentation>Left: blank
Special: First line
By: 22.75" [!!!]

When I set the above to 0, none, and blank, and click OK, the message says:

The measurement must be between -22" and 22"

That is, it somehow acquired a crazy definition and won't let me reset it. I need a way to get rid of these settings. Many thanks for any help.