Samsung Captivate :: Message Contact List Shows Each Contact Twice

In my contacts list when I press the contacts button, I see each contact once. I have it set to only show contacts from my phone. When I go to send a text message and press contacts, my contacts are there multiple times, but I can't see any differences because they are named the same. For example, my son Adam shows up twice in the contact list in text messaging, but only once when I press contacts from my home page.