My original description was a little murky
I realize from your reply that I was a
little misleading. This DB was created in the late 90s, though there's
hardly a field or a line of code that I haven't touched in some manner
over the years. Some odd behaviors in OSX and Linux clients seems to be
primarily in text fields in layout regions. I don't know whether there
could be something underlying in the 'oldness' of the DB itself (it has
been updated to ODS 51 BTW) that could explain it. I have hundreds of Windows
users and they don't experience the sort of weirdness the non-Windows users
do.