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106 Solving Problems
You’ve connected a computer and see a blue screen with the
message No Signal displayed.
■ Make sure the cables are connected correctly, as described on
page 46.
■ Try restarting your computer.
■ If you’ve connected a computer and one or more video sources,
you may need to press one of the
Source buttons on the projector
or remote control to select the correct source. Allow a few seconds
for the projector to sync up after pressing the button.
If you’re using a PC notebook:
■ Hold down the Fn key on the keyboard and press the function
key that lets you display on an external monitor. It may have an
icon such as , or it may be labelled
CRT/LCD. Allow a few
seconds for the projector to sync up after pressing it. Check your
notebook’s manual or online help for details.
On most systems, the key lets you toggle between the LCD
screen and the projector, or display on both at the same time.
■ Depending on your computer’s video card, you might need to use
the Display utility in the Control Panel to make sure that both the
LCD screen and external monitor port are enabled. See your
computer’s documentation or online help for details.
If you’re using Macintosh OS X:
1. Open
System Preferences.
2. Click
Displays.
3. Make sure the
VGA Display or Color LCD dialog box is selected.
4. Click the
Arrangement or Arrange tab.
5. Make sure the
Mirror Displays checkbox is selected.