nerds 2 you, thanks for the reply, have you tried to use the PIN option for security and then tried to remove the PIN later. Sure it's there when you have no screen security but when you do have security does it appear. I am asking because i'm trying to establish if there is a bug. When I have a PIN in use the only way to remove it is apparently from the password screen where you have to enter your Google credentials. When I do this Jelly Bean does not recognise my account details even though my account is active and running on the phone.