Gateway E-4400 - Manual (Page 92)

Video problems 85
The monitor is too close
to a source of electrical
interference. Move the monitor away from sources of
electrical interference, such as televisions,
unshielded speakers, microwave ovens,
fluorescent lights, and metal beams or shelves.
The monitor needs to be
degaussed. Turn off the computer and monitor and leave
them off for at least a half hour, then restart the
system.
Probable Cause Solution