Dell Projector 1220 User Manual page 40

Problem (continued)
Partial, scrolling, or
incorrectly displayed image
The screen does not
display your presentation
Image is unstable or
flickering
Image has vertical
flickering bar
40 Troubleshooting Your Projector
Possible Solution (continued)
Press the Auto Adjust button on the
1
remote control.
If you are using a Dell laptop computer,
2
set the resolution of the computer to
SVGA (800 x 600) or XGA (1024 x 768):
Right-click the unused portion of your
a
®
Microsoft Windows
Properties, and then select Settings
tab.
Verify that the setting is 800 x 600 or
b
1024 x 768 pixels for the external
monitor port.
Press
c
If you experience difficulty in changing
resolutions, or if your monitor freezes,
restart all the equipment and the
projector.
If you are not using a Dell laptop
computer, see your documentation. If
images are not displayed properly, please
upgrade the video driver of your
computer. For a Dell computer, see
support.dell.com.
If you are using a portable computer,
press (Fn+F8).
Adjust the tracking in the OSD Display
Settings of the Advanced Settings menu
(in PC Mode only).
Adjust the frequency in the OSD Display
Settings of the Advanced Settings menu
(in PC Mode only).
®
desktop, click
(Fn+F8).