Hi All, We have recently migrated our 2 x Exchange 2K servers running on W2K to Exchange 2003 SP2 (1 x Enterprise & 1 x Standard) running on W2003 SP1. All went well with the installation and moving of the mailboxes including replication of the public folders went without errors, the problem is that when we turn off the public store on the Enterprise Exchange to prepare it for decommissioning all Outlook clients report the following error: "Unable to display folder Microsoft Office Outlook could not access the specified folder location. Could not open item Try again." No problem with connecting to the new Standard Exchange 2003 public folders and the old 2k server has been decommissioned for a week without errors. I have checked all permissions and the public folders replication and all are in sync. When checking the logons all mailbox users logon onto the New Enterprise Exchange 2003 but all users log onto the old Exchange server when accessing the public folders. Any help would be great relief as TechNet has not shed any light on the problem.