Gateway 7210 System Manual page 124

Probable cause
The display setup is
incorrect
The video card has failed
The video is distorted
Probable cause
The monitor controls are
not properly adjusted
The connector or cable is
damaged
The surge protector or
UPS is damaged
The monitor is too close
to a source of electrical
interference
The monitor needs to be
degaussed
Solution
In the Control Panel window (Start | Settings |
Control Panel), double-click Display and
check the settings. The correct video type
should be selected, along with a supported
resolution. Check your monitor and video
controller documentation for details.
Try another video card.
Solution
Adjust the monitor controls until the text
becomes clear. (See your monitor
documentation for more information.)
Check the connector and cable for bent or
damaged pins.
Disconnect the monitor power cable, then
connect it directly to the power source.
Move the monitor away from sources of
electrical interference, such as televisions,
unshielded speakers, microwave ovens,
fluorescent lights, and metal beams or
shelves.
Turn off the computer and monitor and leave
them off for at least a half hour, then restart the
system.
Video problems
117