BB Storm :: Can't Edit Address Book Contacts

i seem to be having a problem with the contacts on my phone. I cant edit any contacts, or add new contacts either as the phone does not respond at all.. I using os v5.0.0.1015 (Bundle 1656, Platform 4.2.0.442. I backed up all contacts in my address book by using blackberry desktop software and then did the "Wipe Handheld" from my phone, but still when you try to add a new contact when you dont have any contacts on the phone it does not respond (in some cases the phone freezes) and i have to remove battery and start the phone again. again if I try to add any contacts it wont let me edit or create new contacts. Sometimes I got errors after the phone froze which were: net_rim_bb_addressbook_app(207) not responding net_rim_bb_phone_app not responding