I am using DR 3.10.00 and DNN 4.6.2.  I have a checkbox group field on a reg form that is successfully pulling it's items from a db using a sql query.  When I complete the form as a user and select some items in my checkbox group they do not save to the respective DNN extended field that the form field is mapped to.  I verifed that it is mapped correctly, because when I change the form field to a listbox and then complete the form, it will save those items correctly to the respective DNN extended field.  Any thoughts?  Thanks.