There are vertical lines in my projected image. What should I do?

• If you're projecting from a computer and displaying an image that contains a lot of fine detail, you may notice vertical bands or some of the characters may look heavy or blurred. Press the Auto button on the remote control to reset the projector's tracking and sync settings.
  
  If further adjustment is needed, you can fine-tune the Tracking and Sync settings manually using the Signal menu on the projector.
  1. Fill the screen with an image containing fine detail.
  2. Press the Menu button and select the Signal menu.
  3. Adjust the Tracking to eliminate vertical bands.
  4. Adjust the Sync setting to increase the image sharpness.