Just a couple of days ago connected my MacBook Air to my Apple Cinema Display and the wireless Apple trackpad and keyboard that came with my iMac 7 years ago. Everything works ... but ... every time I disconnect the Air and move to a different room and use only the built in touchpad on the Air, I lose some of the settings for the trackpad and keyboard, once I return the Air to my desk connected to my display and using the wireless keyboard and touchpad. The two things that I have noticed that change every time I return the Air from a different room back to my desk are: 1. Touchpad - the drag and drop setting always goes back to unchecked 2. Keyboard - the ability for the delete key to delete fast not just one character at a time. When I do move the Air to a different room to use as a stand alone, I DO NOT disconnect the touchpad and keyboard on the Bluetooth connection. Should I?