My Treo 650 seemingly syncs fine with one problem. If I add a new contact, it works and picks it up. If I edit a phone number of an existing contact, it won't pick it up. I have a feeling that it's scanning headers, and if the contact exists, it moves to the next. Just a guess.

Is this a setting? If so, I can't find it.

Thanks for your input, it's getting to be a problem.