Hi Blake, > The same is also true with vertical lines with heirloom tbl. A series > of small lines is produces rather than a single line.
This seems familiar from long ago. Could it be that if they were ink on paper then they would overlap and join up, but when viewing them on a screen with anti-aliased fonts, the coarseness of the screen's pixels makes them look broken. xditview used to show that IIRC. Cheers, Ralph.