Solving Problems 45
The screen is difficult to read
CHECK THE MONITOR POWER LIGHT — If the power light is off, firmly press the button to ensure that 
the monitor is turned on. If the power light is lit or blinking, the monitor has power. If the power light is 
blinking, press a key on the keyboard or move the mouse.
TEST THE ELECTRICAL OUTLET — Ensure that the electrical outlet is working by testing it with another 
device, such as a lamp.
CHECK THE DIAGNOSTIC LIGHTS — See "Power Light and Diagnostic Lights" on page 47.
CHECK THE MONITOR SETTINGS — See the monitor documentation for instructions on adjusting the 
contrast and brightness, demagnetizing (degaussing) the monitor, and running the monitor self-test.
MOVE THE SUBWOOFER AWAY FROM THE MONITOR — If your speaker system includes a subwoofer, 
ensure that the subwoofer is at least 60 cm (2 ft) away from the monitor.
MOVE THE MONITOR AWAY FROM EXTERNAL POWER SOURCES — Fans, fluorescent lights, halogen 
lamps, and other electrical devices can cause the screen image to appear "shaky." Turn off nearby devices 
to check for interference.
ROTATE THE MONITOR TO ELIMINATE SUNLIGHT GLARE AND POSSIBLE INTERFERENCE
ADJUST THE WINDOWS DISPLAY SETTINGS —
1
Click 
Start
, click 
Control Panel
, and then click 
Appearance and Themes
.
2
Click 
Display, then
 click the 
Settings
 tab.
3
Try different settings for 
Screen resolution 
and 
Color quality.