I have one user of 1500 who, when he logs in to OWA, he only sees his inbox. He does not see his Contacts or Calendar. I logged in with his credentials, and get the same behavior. This is from IE7, IE8, Firefox and Opera. This is reproducible on multiple machines. Logging in via Outlook shows no issues. OWA Light and Premium gets the same behavior. I can log in to my own mailbox from any machine he uses and get the correct behavior. The background on this is I have 1500 users, recently completed a migration from Exchange 2003 in a hosted environment to an in house Exchange 2007 environment on Server 2008 enterprise. I have only the one user with this issue. I could move him to a new mailbox, but that doesn't correct the underlying issue. I have another 400 users that will be migrated next weekend to the 2007 environment. His account is in one child domain, the Exchange servers are in a separate child domain in the same forest. This configuration is not affecting other users.