The message is at least partly bogus, but the way around it is to go to
Format | Columns and click on the preset picture for One (even if you
already have just a single column), which will check the "Equal column
width" box and result in a correct column width. If possible, do this with
"Whole document" selected under "Apply to." Then click OK. You'll probably
notice that the column width shown changes.
--
Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
Fairhope, Alabama USA
http://word.mvps.org