Check Box field, Drop Down Field not stored in usermeta table,

hi there,
I have one checkbox field with 6 choices on my join form. and many other types of custom fields. All Text fields, Radio Button Fields, Text Fields are being stored in the wp_usermeta table, except for the Check Box and Drop Down fields. I did a test by creating a second checkbox field with another 6 choices, filled out the form, added a new test user with the same result. All the user's fields are in wp_usermeta table except the 2 Check Box fields and the test Drop Down field.
many thanks,
eve lurie

hi chris,
many thanks for your reply,
i'm using WordPress 3.5.1., and the User Registration add-on 1.5.5, updated for me to address a rare redirect after payment bug.
I've been working on the form, so there is no second test drop down but the do not publish options are the same, and I am attempting to set 3 new fields that depend on these checkmarks. not quite there yet.
sent you all info by separate email.