Instruction Manual

26
Troubleshooting
IMPORTANT
Check Control Panel --> Display --> Settings and see if the frequency or the
resolution were changed. If yes, readjust the video card to the recommend
resolution.
If the recommended resolution (optimal resolution) is not selected, letters may be
blurred and the screen may be dimmed, truncated or biased. Make sure to select
the recommend resolution.
The setting method can differ by computer and O/S (Operation System),
and resolution mentioned above may not be supported by the video card
performance. In this case, please ask to the computer or the video card
manufacturer.
Display image is incorrect
● The screen color is
mono or abnormal.
● The screen blinks.
• Check if the signal cable is properly connected
and use a screwdriver to fasten if necessary.
• Make sure the video card is properly inserted in
the slot.
• Set the color setting higher than 24 bits (true color)
at Control Panel - Settings.
• Check if the screen is set to interlace mode and if
yes, change it to the recommend resolution.
Do you see an "Unrecognized monitor, Plug&Play (VESA
DDC) monitor found" message?
● Have you installed the
display driver?
• Be sure to install the display driver from the display
driver CD (or diskette) that comes with your
display. Or, you can also download the driver from
our web site: http://www.lg.com.
• Make sure to check if the video card supports
Plug&Play function.