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• The Source button on the control panel or remote control can be used to select a source. NOTE: • Always turn off the image source (computer or video) and projector before connecting or disconnecting cables. • When using a computer as the input device, set the resolution of your computer’s graphic card to 1024x768 for the optimal projected image. Refer to the Timing Charts page 30 to verify that the video signal timing of your graphics card is supported by the projector. • Many laptop computers