Okay, I had the same pdf problem mentioned above too. The form I created was being returned as an xml. I took Michael Hodgson's above suggestion of changing your button from an "Email submit button" to a plain old "Button". Then in the Object tab specify the Control Type as "Submit"...yada yada...Well, it worked...kind of...
Here's what happened. I have two email addresses. I had one of my emails set as the return address on the form and the other is where I sent the form as a test.
I received it as a pdf...so far so good. I then filled out the form, hit "submit" and it arrived in the at the appropriate email address as a pdf with the proper information filled in. Problem solved there.
HOWEVER...Anyone else I send the form to, recieves it, fills in the fields, hits "submit" and it never gets back to me. What am I doing wrong?
Please help!!! I need this up and running properly by tomorrow! Thanks...A Spano