Why are only part of my images blurred or out of focus?

• Adjust the Brightness and Contrast settings on the Video main menu. If you are viewing a computer image, also try adjusting the Comp Tracking and Comp Sync buttons on the projector's control panel. There may be dirt or smears on the lens. Clean the lens as described in your User's Guide. If you have already adjusted the focus and zoom, make sure the printer is lined up properly with the screen. It should be at least 3.9 feet from the screen. Please refer to users guide section referring to focusing and positioning the screen image.