I have set up a required form entry called Registry Type that has checkboxes for Author, Editor, Educator, Reviewer, and Student. (A registrant could be more than one.) I've got the conditions set up to assign Author to the Author group, Editor to the Editor group, etc.

All of this seems to be working fine except when the form is first loaded (on registration), the last checkbox is invariably checked, even though I left the default parameters blank (see attached screen shot). This, then, does not force the registrant to read the entry and select the correct box or boxes.

How can I make the form first display with nothing checked?