Well, I looked at my message of 18 months ago before I posted and tried what
I was told to do then.  It didn't seem to work, and I hope you'll pardon me
if I can't remember what else I might have done to fix the problem.

As it seemed I wasn't going to find help here, I kept playing with it and
discovered that somehow I actually had two tables. Once I deleted extraneous
space between the two, deleted the check in the "repeat row header" block
and then re-checked it, I fixed the problem.