Basically I've been experimenting with my Address lists on Exchange 2003 server.I created one, named it 'Sixth Form' and tried to alter some of the permissions. Now if users start Outlook, they can see 'Sixth Form' list but I cannot view, edit or remove the address list in Exchange System Manager (due to there being no permissions?)If I try to create a new one with the same name - I get an error message "The list with the same name already exist". Can somebody tell me how to remove this list or how to restore permissions on it? Just anyway to access the list in Exchange System Manager really?Thanks in advance

I'm also with this problem.

Delete it from configuration partition of AD with adsiedit.msc and re-create it. Path : Configuration Partition -> Configuration -> Services -> Microsoft Exchange -> <Organization Name> -> All Address List Container -> <Address List Name>