By "public resource calendar," do you mean a folder in the Public Folders hierarchy or a Calendar folder in a mailbox configured as a resource?

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"GrHopp" wrote in message ...
We have a public resource calendar (conference room) and I created a private
appointment on it. I am unable to modify, change or delete the appointment.
Nothing I do will allow me to modify the appointment, even though I believe I
created it.

The calendar default permission is set to Author and my permission is Owner.

Outlook 2003 SP2 and Exchange 2003.