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70 Problem Solving
■ If the function key doesn’t let you display simultaneously on both screens, you might
need to use the Display utility in the Windows Control Panel to make sure that both the
LCD screen and external monitor port are enabled. From the Windows Control Panel,
open the
Display utility. In the Display Properties dialog box, click the Settings tab,
then click
Advanced. The method for adjusting the setting varies from computer to
computer; you may need to click a
Monitor tab, then make sure the external Monitor
port is set as your primary display or enabled. See your computer manual or online help
for details.
If you’re using Mac OS X:
1. Open the
System Preferences utility and select Displays.
2. Select the
VGA Display or Color LCD option, if necessary.
3. Click the
Arrange or Arrangement tab.
4. Check the
Mirror Displays checkbox. (See your computer manual for details.)
The picture is upside-down or reversed.
Change the
Projection setting in the Settings menu (see page 51).
The picture isn’t rectangular.
■ If the image looks like or , make sure the projector is not tilted up or down, then
use the vertical keystone buttons to adjust the image (see page 22).
The picture contains static or noise.
■ Make sure the Input Signal is set correctly for your connected video equipment (see
page 51).
■ If you’re viewing still images and you notice flickering or horizontal lines, turn on the
Progressive setting (see page 38).
■ Make sure your cables are securely connected at both ends.
■ If you’re using an extension cable, you may pick up interference if the cable is not
adequately shielded. You may need to use a signal amplifier for longer cables.
■ If you’re displaying the same image on your computer and projector screen, try turning
off your laptop’s LCD display (see page 69).
The picture is blurry.
■ Make sure the Input Signal is set correctly for your video equipment (see page 51).