We upgraded from Exchange 2003 to 2007 a while ago, and had a problem with public folder permissions. I'm a domain/enterprise/exchange/exchange organization administrator, but I could not access some public folders. I ended up on the phone with Microsoft, they talked me through deleting and adding myself as owner of some folders. Now I find that there's another object I cannot access. I tried using the same commands I used last time, I still can't view a calendar within a public in Outlook, although I see other calendars in the same folder.
Remove-PublicFolderClientPermission -Identity \"Group Calendars\Marketing Calendar of Events" -user "MYLOGON" -AccessRights owner -server "mail"
Add-PublicFolderClientPermission -identity \"Group Calendars\Marketing Calendar of Events" -user "MYLOGON" -AccessRights owner -server "mail
Remove-PublicFolderClientPermission -Identity \"Group Calendars\Marketing Calendar of Events" -user "MYLOGON" -AccessRights owner -server "mail"
Add-PublicFolderClientPermission -identity \"Group Calendars\Marketing Calendar of Events" -user "MYLOGON" -AccessRights owner -server "mail