Hi, I just started to set up my new rMBP 15" (Late 2013). After installing and activating the apple services (iMessage, Apps over the AppStore,...) you will get a mail from Apple where it says that your Apple ID was used to sign in on a Mac with it's corresponding name. My problem is, that Apple says that my device is an Macbook Pro 13". But that's wrong - it's a new retina Macbook Pro 15". So - what went wrong and where can I change it? I already set up Mavericks from recovery - but still the message. Who can help?