I though this would be easy to do but I have hit a wall. Scenario: - On User1's Calendar I give Author permissions to User2 - User 2 opens User1's calendar http://server.domain.com/exchange/user2/calendar - I have tried with the smtp address too: http://server.domain.com/exchange/user2@domain.com/calendar - User2 has no "New" button so he cannot create any items in the Calendar I have tried giving him Owner permissions but the result is the same. I have tried to add User2 as a delegate but it doesn't help. This is a standard Exchange 2003 BE server. FBA is not turned on. Anyone have any ideas? Thanks Simon