Hi Chris,
Thanks so much for the excellent advice. It was a breeeze once I knew what to do, and clicking on the XML Source Tab brought me right to the line of code that needed to be changed. I uploaded the form to our web site and sent it to myself and the PDF arrived instead of XML.
I do have another question. I can't find settings for Reader Extensions anywhere. I'm guessing this isn't an issue as long as the form is on our web site, but from what you say it seems like if I email the form to our users and they have it on their desktop and try to send it it won't go unless I have the RE settings correct.
I'm a novice and trying to learn so I appreciate your patience.
Thanks.