Thanks. That error code suggested a corrupt contacts entry, so I moved all contacts to another folder, and then moved them back one-by-one to sync (I have >200 contacts
), and isolated the guilty ones - there were 10-15 that would cause it to lock up. So I deleted those, and manually recreated them on my phone, and synced again, and now it works fine.
It was weird, though; nothing seemed wrong with those contacts, and an Outlook integrity check said they were fine, too.