17 Picture optimization5. Picture optimization The easiest way to obtain an optimal display from an anal og (D-Sub) input is to use the AUTO key function. Press the AUTO key to optimize the currently displayed image to the screen. When you connect a digital video output using a digital (DVI) cable to your monitor, the AUTO key and the Auto Adjustment function will be disabled, because the moni tor will automatically display the best image. Please ensure that the connected graphic card on your computer ...