Client computers running Outlook 2007 in cached mode are not getting updates to the OAB. When we send/receive-> download address book/ full changes, Outlook appears to download the address book with no errors, however the oab does not update. If we turn off cached mode, the GAL is correct.
the environment was migrated from a 2003 server, which is no longer available.
we have re-created the OAB and set the newly created OAB as default.
when we run get-offlineaddressbook | fl , it shows the OAB as being located on our exchange 2007 server.