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108 Solving Problems
■ Macintosh OS 8.6 to 9.x:
On the Apple menu, choose
Control Panels, and click
Monitors and Sound. Select a different resolution.
■ You also may need to modify existing presentation files if you
created them for a different resolution. See your software
documentation for specific information.
The image isn’t square, but keystone-shaped.
■ If the top or bottom of the image is broader, press the Sync + or
Sync – button on the projector until the image is square.
■ If the projector is angled toward the screen from the left or right,
the image will be broader on one side. Center the projector in
front of the middle of the screen, facing the screen squarely. If this
doesn’t work, press the
Tracking + or Tracking – button on the
projection until the image is square.
■ If the image has no parallel sides, use Quick Corner. Press the
Menu button, select the Setting menu, and select Keystone.
Select
Quick Corner and make your adjustments with the
pointer button. See page 36 for details.
The image contains static or noise.
■ Make sure the correct input signal is selected in the Signal menu
(see page 64).
■ If you’re using a computer cable longer than 6 feet, or an
extension cable, the image quality may be reduced.
■ Keep your computer and video cables away from the power cord
as much as possible to prevent interference.
■ The video signal may be split between the computer and the
projector. If you notice a decline in the projected image quality
when the image is displayed simultaneously on your notebook
computer and the projector, turn off the notebook’s LCD display.