Chosen Solution

I got my hands on an old Imac 8.1. The screen in standard mode is however oversaturated. I get the same result when I connect een external monitor. I was able to get it a little bit better readable screen with calibration, attached 5 pictures. 2 with the oversaturated screen

2 with the same screens now corrected a bit.

1 from my Imac 14.2 with the same backgrounds to show the difference.

Are there options to tune the graphics card or should I look for a replacement of the graphics card? The OS is Snow Leopard Thanks and regards, Jacob

First, go into System Preferences, then Displays, then click Color. You should have a lot of options listed. Click on the top one that says Color LCD. You should see the colors change. Hope this helps.