2.Use the 
pointer button to highlight the desired option, then adjust it as needed:
■Auto Setup
Leave this setting On to automatically optimize the computer image. Turn it off if you want to save adjustments you have made to the video settings.
■Tracking
Adjust this value to eliminate vertical stripes in the image.
■Sync
Adjust this value if the image appears blurry or flickers.
■Progressive
Turn this setting On to convert composite video signals into progressive signals (best for still images). Leave the setting Off for moving images.
■Position
If the image is slightly cut off on one or more sides, it may not
be centered exactly. Select this setting and use the 
pointer button to center it.
■Computer Input
If the colors don’t look right on the Auto setting, select the setting for the type of equipment you’ve connected to the
Computer/Component Video port:
RGB: For a computer connection.
Component Video: For a video player that outputs a component video signal.
■Video Signal
Leave this setting at Auto unless you are using a
■Resize
Choose an aspect ratio of either 4:3 or 16:9. Normal is the default setting for a computer connection.
Before adjusting tracking or sync, fill the screen with an image containing fine detail. For example, in Windows you can select a pattern to appear as your desktop background. If this option isn’t available, try projecting black text on a white background.