Hello All, I got the attached error screen while syncing from Entourage 2004, v11.3.3 for Mac. OS X 10.4.10. Some data did sync, but the entries that did not are apparently untraceable. I tried wiping the old Addressbook on the Mac side to eliminate any corrupt data. The first sync with Entourage and subsequent sync gives the same error. Funny but my iPhone syncs great with Addressbook and doesn't give a similar error. I checked the database in Entourage with Database Utility and no errors were found. I also backed up the database and compacted it just so I'd have a copy. The database does somehow get duplicate information to Addressbook with subsequent syncs which end up duplicating entries on both Addressbook and Entourage. Henry
