Hello all,
our automatic mailmerge system has been working for years. Quite
recently, we finally upgraded the system to a Windows 2000 machine with
Office 2003 installed.
Most of the jobs provided to the mailmerge application are still
processed without the slightest problem: the Word and Excel documents
are provided, and the application produces the merged documents to be
sent to the proper recipients.

But a new problem arised, affecting very few (yet annoying) documents:
sometimes Word displays a dialog box titled "Select Table", showing NO
tables (nor sheets, nor anything else: just an empty list is shown).

If we copy the data contained into the Excel document (the first sheet
of it), and paste it into a fresh new document, and then feed it to the
application, it works without showing that annoying and blocking dialog
box.
The documents affected by this problem are provided by our customers,
which cannot explain how (strange) they created these documents.

What is the problem? Why does it happen?
Thank you very much
Regards,
Alessio Gordini