Last time I changed a phone # on my iPhone and synced it to my mac, it told me I was going to change more than 5% of the contacts or something like that. I then clicked ok and I lost my entire address book. (Luckily I backed it up). I entered a few new numbers in my phone today and I want to sync it back to my computer. Is there any way not to lose my address book again? Shouldnt it just update the address book on my mac from my phone and not delete everything again?