I am running several versions of Outlook on 9 different workstations running on an Exchange 2007, Server 2003 Standard x64 R2 network. The Outlook 2000-02 version does not allow editing of categories(labels) when setting up an appointment for the calendar. All of the options are greyed out. The same profile on an Outlook 2007 machine does allow editing of the aforementioned. How can I restore the ability to edit categories(labels) in my older versions of Outlook?