Solving Problems 51
If the screen is difficult to readSWAP THE POWER CABLES —Swap the computer and monitor power
cables to determine if the power cable is defective.
TEST THE VIDEO EXTENSION CABLE (IF USED)— If you are using a
video extension cable and removing the cable solves the problem, the cable is
defective.
TEST ANOTHER MONITOR —If another monitor is available, connect it to
the computer.
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 60cm (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 FACE A DIFFERENT DIRECTION —Eliminate
sunlight glare, which can cause poor picture quality.
ADJUST THE WINDOWS® DISPLAY SETTINGS —
1Click the Start button, and then click Control Panel.
2Click Appearance and Themes.
3Click Display, and then click the Settings tab.
4Try different settings for Screen resolution and Color quality.
RESTORE THE RECOMMENDED SETTINGS —Restore the original
resolution and refresh rate settings. See the Tell M e Ho w help file for instructions.
To access help files, see page32.