Thanks, but I neglected to mention that this will be a distributed form, and I have no knowledge or control over the end user's system/setup, or their data source, so an add-in is not going to work.

My latest idea was to use a macro to unprotect the document, run the mail merge, and then protect the document when finished, but I haven't done any real VBA coding for Word documents before (mostly PPT). I am not sure how feasible this might be (or if it is even possible).