Why are my address book contacts no longer syncing between my MacBook, Mobileme and my iPhone?

Click on the icon to sync on the toolbar. Then click “open mobil me sync preferences.” Then make sure you have it set to update automatically.

@missingbite I do. I also went directly into address book preferences and made sure it was checked there also. I also went into my iPhone and made sure the same settings were there. Still not showing any of the updates or new contacts or groups I have added on my macbook.