Act 6 - New Users - Country Codes

[Mattincepta]

Hi I have Act 6 installed on a few computers and they all used the same username to access the database, but that meant they couldn't access it at the same time. I created 3 new users which work fine, but the country codes for each contact are all wrong... I can change them manually but have over 3 thousand contacts and don’t want to go though each one. If you log back into the original user the country area codes are fine. Is there a way of correcting this?

I have tried its own help and a few sites online but cant find anything.