Just bought a brand new Apple Tv today. Mainly for the purpose of using it to see the content of my Ipad and to be able to shoot the screen content of my iMac across the room onto my TV screen. I figured out the iPad part called Air Play, but still have trouble with Mirroring. Isn't mirroring suppose to connect my Imac to the Apple TV and thus to my widescreen TV via WIFI? How can I achieve this?