We are running exchange 2007 and are having sync issues with outlook 2003 sp3. We get the message
11:21:50 Microsoft Exchange offline address book
when trying to sync the OAB. The clients using outlook 2007 work fine. We are not using the public folder distribution for OAB, only the web based distribution and have the Outlook 2003 SP2 or later(Version 4) box checked under the OAB properties. If I check the public folder distribution, the outlook 2003 SP3 clients will work, but I read Outlook 2003 SP2 or higher does not need to use the public folders to download the OAB.