The correct GAL name shows up on the BES console. It has been 24 hours since the change. When sending an email from his blackberry it shows old GAL display name. We removed the account from the BES and added it and still having the same issue. Any help would be appreciated.

I would double check that user in active directory. I had that same problem with a user and it was because his email address was automatically updating itself to the wrong email address from when he was setup improperly. After I got the email fix in AD it fixed itself on the bes after the next activation