First, your product is extremely helpful and does just what we need for managing our college's language lab. Thanks!
Problem: only I (logged in as administrator) can view and edit the calendar. I'm using S2Member plugin with hierarchial security to pages and posts. However, even after stripping all the security away, others cannot view or edit the calendar. They can access the page where the calendar resides but can only see the "Add Events" link and the events legend/key... when they click on "Add Events" the error message says they "do not have sufficient permission to access to this page". Again, it's not my WordPress page that is being blocked, but the object [ calendar].
Any quick help you can give would be greatly appreciated. I boasted to all our instructors about this fabulous new tool and when they tried to use it they couldn't.