Microsoft, Outlook 2003, R2003, Public Folders permissions

We recently upgraded our Exchange server from Exchange Server 2003 to Exchange Server 2007. The reason we did the upgrade was because of permission issues in Public Folders due to a loss of a Global Catalogue during a bad DC demotion last year. We cleaned up the AD as much as possible prior to upgrading the Exchange as well as upgrading our DC to a new machine. All cuurent permissions are correct. The problem now is I cannot edit any information such as reaccuring calendar events or Rolodex info that was done prior to the GC loss. Everything after can be edited with no problems. We had hoped with cleaning up the DC and AD as well as upgrading to Exchane 2007 would take care of the permission issues but that was not the case. Can anyone give us some ideas here? Thank youStart Free Trial