When I connect my iPad Mini with Retina to iTunes on my MacBook Air it acts as if there's a loose connection on the cable & keeps connecting/un connecting to iTunes with the mac constantly making the beeping noise it makes when you first connect it. The iPad is on the latest 7.1.2 software & the MacBook on the latest iTunes 11.2.2. My iPhone 5s has no issues on the computer with the same cable & the iPad charges from the mains no problem with the same cable. WHATS GOING ON