I don't know of a registry hack but I'm not sure at all this has anything to do with Verizon-- why would they cripple the feature on one of their phones but not another. The truth is that many smartphones have trouble downloading address books to BT cars and car kits. PDA phones and smartphones have more complex address books with many more fields than standard feature phones like the RAZR and that can cause problems.
-------------------- Lisa Gade Editor in Chief, MobileTechReview