Bluetooth Pairing Mobile Phone


I have not had a problem in the past but in trying to pair my Sony Ericsson s700i to my G4 Powerbook, whilst I am getting the password generated to input into the mobile, the Bluetooth Sett-Up Assistant then goes into an endless loop stating gathering additional information about your mobile phone?
It just loops forever.
I have tried copying the preferences from a backup but it has not helped.
Your advice please