iMac (Mid 2007) loses color after Mountain Lion upgrade

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iMac (Mid 2007) loses color after Mountain Lion upgrade

#1 sanjin

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Joined: 09-October 01

Posted 31 July 2012 - 11:31 PM

Two days ago while watching a movie, I suddenly lost color on iMac.
At first I thought something's maybe wrong with ATI Radeon HD 2600 PRO graphic card inside it, but then such color loss didn't happen when using Lion, before upgrading to Mountain Lion.
I noticed that on July 25 (when I upgraded to ML), a new ColorSync profile is created, found it inside System Preferences, Display, Color.
The old profile worked fine, obviously this upgrade to ML created some sort of corruption (don't know how to name it) in colors. Maybe an OS X update could correct this issue, but I'm not sure.

Is the problem in graphic card? Maybe the card should be replaced.

Any experiences?