Mail Contacts messed up. Help Please!

To fix corrupted contacts, you must go into Macintosh HD -> Users -> username -> Library -> Application Support -> Address Book (or Contacts if you're running Mountain Lion) via the Finder. Note that since Lion, the Library folder is hidden. Getting to it isn't that hard: Invoke Finder's Go To Folder... feature and type this at the prompt that appears:
Click OK. You'll be sent to your user Library. From there you can navigate further.

Anyway, once you're in that folder you'll see some stuff in there. One of those files is your contacts database (its extension starts with .ab). Move that file elsewhere (while Address Book / Contacts is NOT running!) and restart Address Book / Contacts. You should now have a blank slate. If this did NOT work, quit Address Book / Contacts and move the file back.

Reality4711 said:

Unfortunately the above did not work.

Is there a way of deleting my contacts Please.

From 'mail' and the contacts book.

Quite desperate now }-(

Thank You

Click to expand...

Back to the same folder, just blow away the whole AddressBook folder inside Application Support. That WILL work.

chown33 said:

Simpler:
1. In Finder, click the Go menu.
2. Observe the menu drops down.
3. Press the OPTION / ALT key on the keyboard.
4. The "Library" menu item appears.
5. Choose it.

Click to expand...

I didn't know about that little trick. Thanks!

That being said, I'll still use "Go To Folder" for going to /var/folders to look at temporary stuff, since I'm a developer and I need to check such things.