User Manual

Troubleshooting
Computer display problems
Problem Cause and action
The screen is blank. Press Fn+Home key to make the screen brighter. If you still have the problem, do
the "Cause and action" in the problems below.
The screen is unread-
able or distorted.
Make sure that:
 The display device driver is installed correctly:
1. Click Start and move the cursor to Settings; then click Control Panel.
2. Double-click Display.
3. Select the Settings tab in the "Display Properties" window.
4. Click Advanced...; then click the Adapter tab.
Make sure that the display driver information is correct.
 The display resolution and color depth are correctly set.
 The monitor type is correct.
Incorrect characters
appear on the screen.
Did you install the operating system or application program with the correct proce-
dure?
If they are installed and configured correctly, have the computer serviced.
The screen stays on
even after you power off
the computer.
Push and hold the power switch for about five seconds; then release it to turn off
your computer. Turn it on again.
Missing, discolored, or
bright dots appear on
the screen everytime
you power on your com-
puter (TFT model.)
This is a characteristic of TFT technology. Your computer display contains multiple
thin-film transistors (TFTs). A small number of missing, discolored, or bright dots
on the screen might exist all the time.
"Unable to create
overlay window"
message appears when
you start DVD playback.
—or—
You may get poor play-
back or none at all while
running video playback,
DVD playback or game
applications.
Do either of the following:
 If you are using the computer display and external monitor simultaneously with
32–bit color mode, change the color depth to 16–bit mode.
 If you are using a desktop size of 1280x1024 or larger, reduce the desktop
size and the color depth.
30 ThinkPad i Series 1200/1300 User's Reference