BB Curve :: Unable To Add An Email Address?

partner has just had to exchange her handset because it wasn't working correctly. She is using the same sim.She had already added her email address on the old handset and adding it on the new handset is proving to be a problem.When she tries to 'add email' it comes up saying 'existing users' and asking for the user name and password. When we type in the full email and password it says 'Blank user name. Type a valid user name'We have tried just typing the first part of the email without the '@whatever.com' bit on the end and it says 'connecting to email settings' and then 'the information you provided is incorrect. retype your user name and password. Your user name and password are case sensitive.