I once had a client whose monitor was blue then red then normal, randomly
changing at various times and frequency.  It was fixed by the first thing I
checked - the power cord, which was almost ready to fall out of the wall.
It seems simple, but check that power run and bypass any surge protector to
test.  If the monitor has a self-test mode (I know some KDS monitors do, for
example), turn on the monitor without the PC on.  Also if you can test the
monitor on a known stable PC (someone with a laptop and video out port is
the easiest IMHO) you can determine if the monitor itself is the trouble
right off the bat.  Good luck.
Subject: [PCBUILD] Monitor Colour Gone Deep Pink
"The colour on our moniter has gone a deep pink hue and the background keeps
changing.  What should we do? "
Marilyn Wilson

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