To start first press the Menu key. Once the screen on the MX-450 has come on, start by pressing and holding the button to the left or right of what you want to watch. At this time the Projector will start to come on. You only have to press the button for a half second and must wait while the macro runs. After it has ran the MX-450 will change pages. Everything is automatic and as soon as you choose what you want to play, the device will automatically come on. Once the MX-450 has change pages you will notice on the menu bar that is now reading what you have selected. What this means is you know control only only that device. To power off Press the Power button from any page.