InfoPath Dev

I added a button control. I used a button control so that I could use a Rule to change to another view of the page after the data is submitted. And this all works fine for users within our network, but not for the public users. Only the public users get the error message.

We are testing a new SharePoint extranet site that publishes InfoPath form data (from a browser form) to a SharePoint Library. The form has a submit button to submit the data. Everything works fine if the user is within our network (an internal user), but when we test it (fill out a form and press "Submit") from ...