I have fixed this problem but I'd like to know why it happened.  Here
goes:

I created a document that contains a macro that basically merges the
document with a .TXT file.  I transferred (if that's the right word)
into a new template called "projectabstract.dot".  I sent the document
to other users along with instructions to save projectabstract.dot into
the subdirectory where their other templates were (found by Tools,
Options, File Locations).  Most of the users did everything right and
the macro ran fine.

Then I needed to edit the document and the macro and send it out again.
This time, some users (all Word97 users) got the message "Compile
error:  Can't find project or library".  When I got them to stop the
macro and go to Tools, References, it showed that the
projectabstract.dot template file was MISSING.  BUT it wasn't.  It was
in the same place that it had been (I got them to check).  They
unchecked the missing reference, saved the document and now the macro
runs fine.

BUT why did it say that the template itself was missing, which was
wrong?  I'm pretty sure that I sent them another copy of the template
and told them to save it again, overwriting the one that was already
there.  The users I was working with are pretty savvy and usually
follow the directions they are given.  But if they hadn't replaced
projectabstract.dot, could that have made the difference?  We will
probably be doing other things like this (i.e. one person creates a
document/macro and sends it to other users) so I'd like to know which
pitfall I fell into.  Many thanks.

Carol.