We've got a user who is unable to assign permissions to delegates in Outlook. He can add the delegates but the permissions are not saved.
When he does this on Outlook 2002 on Windows 2000, he gets the error message "The Delegates settings were not saved correctly. Unable to modify access control list.".
When he does this on Outlook 2003 on Windows 2003 (Terminal Services), there's no error message but after setting the delegate permissions, closing and re-opening the Options dialog, all delegate permissions are "None" again.
This problem does appear to be specific one user. Can anyone suggest any way of fixing this?
(Active Directory in mixed mode on Win2003 controllers, Exchange 2003 on Win2003).