82 Problem Solving
You’re using a computer and no picture appears on the screen.
If you’re using a Windows® laptop:
■Press the function key that lets you display on an external monitor. It’s often labeled with
an icon such as , but it may also be labeled CRT/LCD. You may have to hold down
the Fn key while pressing it. Check your laptop’s manual or online help.
On most systems, the key lets you toggle between the LCD screen and the
projector, or display on both at the same time. Allow a few seconds for the projector to
sync up after pressing it.
■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 55).
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 26).
The picture contains static or noise.
■Make sure the Input Signal is set correctly for your connected video equipment (see
page 56).
■If you’re viewing still images and you notice flickering or horizontal lines, turn on the
Progressive setting (see page 43).