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For about three years I have been using the screen spanning doctor on my 1Ghz eMac. Thanks a lot for this great software! Second monitor is an older 21inch Mac monitor. Well, it recently turned blue. You can't see any red or green colour at all. At first I tought that the old and heavy Mac monitor broke down, and replaced it with a Gateway I found on the street. I had to buy a new cable, and guess what? This one is blue tinted too.
That points the problem to my eMac.
Any ideas how to solve this one?

Calbirate them?

bad cable or adapter more likely.

I calibrated them and that didn't help. It's always difficult to get two different monitors to have same shade of the same colour. eMac is fine, but Gateway is blue tinted.

I've used different cables as well. Second one is a brand new one.
Do you think that it might be my video card or the mother board problem?

I have a standard Macintosh white VGA adapter coming out of my eMac. I will replace it and see what happens.