Monitor has Red Tinge

Hi
Basically moved my G4 Tower to my new house, and when plugged monitor back in I've got this red tinge to the whole screen, I have reset and cleaned the Video card but still have the same problem, does anyone have any ideas what I can do to sort this out or is something screwed?
Thanks Nick

If this monitor connects with a VGA cable, carefully examine all connections for bent pins, then be certain all plugs are firmly inserted into their jacks.
This is not a "fools errand". The pins for red and red ground are at one end of the connector, and a connector beginning to slip out of place may exhibit exactly this problem.

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