Hi macropod,
your code is much more elegant and faster than mine, and I'll remember to use it elsewhere, but the problem wasn't in the 'numero' value, that was the first thing I checked...
so if the problem is not the code, where could it be?
In the new copy of the files, the MailMerge wizard sees all the records, then I can select the fields to embed in the template, save everything and... error 5631 still jumps out! and a week ago that same code, with the original files, worked flawlessly! I don't know what to think!