Hello there, I have recently made the switch over to iCloud. I have 2 macbook pros a macbook air and an iPhone. The address book is working very well with the 2 pros and the iPhone. However, on the macbook air the address book lists 2 lots of contacts: All On My Mac & iCloud. I can click on All On My Mac and only those contacts show up (but changes have been made to a few email addresses and they do not show up) I can click on iCloud and only one set of contacts shows up (the correct ones with the changes) Or I can click All Contacts and it duplicates. So ... how do I hide or delete All On My Mac contacts as I only want to use iCloud contacts - as the other devices are using this. I have selected iCloud as the default account in system preferences. Also, in the macbook air all the birthday subscriptions have now doubled up! Please help! Thank you in advance!