[CentOS] Speaking of libreoffice

Been busy writing - updated C 6.10, and libreoffice, for no reason I
understand, decides to put a heavy horizontal line in the text. I've tried
highlighting it and removing direct formatting, I've tried selecting it
and hitting delete, nothing makes it go away.

Horizonetal line (in ASCII) one heavy lower line, one very thin line a few
pixels above it, sort of like
----------
==========

Clues for the poor?

       mark