Syncing Address Book

[TreyF]

Does anyone know a simple way to sync all address book users? everytime I sync mine I get duplicates of contacts.

I have no simple way of syncing my whole address book, without having duplicates or missing half of my contact list.

[TreyF]

I figured one thing out. Contacts on Mac sync with Blackberry, but blackberry does not put contacts on the phone into the address book on mac. ugh.