If the card is showing up as a 32gb card on your computer OS, and you can transfer files back and forth, then you don't need to worry about the partitioning.
Looking on B&N.com, it might be something related to Windows 7. I would try formatting the card again in some other OS if you are using Windows 7. Maybe use your phone, for example.
http://bookclubs.barnesandnoble.com/...ght/true#M6075