Acer PD116P User Manual page 28

Appendices
Problem: The screen of the Notebook or PowerBook computer is
not displaying your presentation.
Problem: Image is unstable or flickering
Problem: Image has vertical flickering bar
Problem: Image is out of focus
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4. Follow the above steps 1-2. Click on the "Advanced Properties"
button.
5. Select the "Change" button under the "Monitor" tab . than or
equal to 800 x 600.
6. Click on "Show all devices". Then select "Standard monitor
types" under the "Manufacturers" box ; choose the resolution
mode you need under the "Models" box.
7. Verify that the resolution setting of the monitor display is less
than or equal to 800 x 600.
If you are using a Notebook PC:
1. You are required to implement the above steps of resolution
setting of the computer first.
2. Switch the Notebook PC display to the "external display only"
or "CRT only" mode.
If you experience difficulty in changing resolutions or your monitor
freezes, restart all the equipment and the projector.
If you are using a Notebook PC:
Some Notebook PCs may deactivate their screens when a second
display device is in use. Refer to your computer's documentation
for information on how to reactivate the monitor display.
If you are using an Apple PowerBook:
In Control Panels, open the PowerBook Display to select Video
Mirroring "On".
Use "Tracking" to correct it. Refer to page 22.
Change the monitor color setting from your computer.
Use "Frequency" to make an adjustment. Refer to page 22.
Check and reconfigure the display mode of your graphic card to
make it compatible with the product. Refer to page 20.
Adjusts the Focus Ring on the projector lens. Refer to page 14.
Make sure the projection screen is between the required distance
3.9 to 32.8 feet (1.2 to 10.0 meters) from the projector.