Screen has a pink hue?

Basics first. iMac G4 running OS 10.3.9
Asking this for my dad so hopefully passing on right info.
He had shut down the computer everything running fine. On reboot everything starts up fine, no problems except that the screen now has a pink hue to it. Icons, text, background, everything. It is usable but hard on the eyes. I gave him what I thought was the command to zap the video ram but it didn't work. Suggestions?

Hi,
Not good!....
http://discussions.apple.com/thread.jspa?threadID=1835074&tstart=50
Sorry to be the bearer of bad news ( again! )
Regards.
Ian.

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