Color display is single color due to a bad video cable.
Cause:
Video cable is bad.
Solution:
Replace the video cable.
NOTE: Only applies when display unit has a detachable video cable.
1) Turn off the computer and display unit.
2) Replace the video cable:
a) Trace the video cable from the back of the display unit to the back of the computer.
b) Unscrew connector screws completely until the video cable connector can be gently pulled from the connector on the video card.
c) Remove the video cable from the connector on the back of the display unit.
d) Insert the video cable into the connector on the back of the display unit.
e) Inspect the shape of the connectors on the video cable and video card, holding the cable connector so that it matches shape of the connector on the card.
f) Gently insert the cable connector into the video receptacle on the video card on the back of the computer.
CAUTION: DO NOT force the connection. The pins are fragile and can be easily damaged.
g) Secure the video cable to the back of the display unit.
3) Turn on the computer and display unit.
