Suddanly Mbp display has got inverted colors with black on white settings. in universal access. When I connect external display(tv), TV display is normal. I reinstalled os x lion. But it did not help.

Suddanly Mbp display has got inverted colors with black on white settings. in universal access. When I connect external display(tv), TV display is normal. I reinstalled os x lion. But it did not help. I had this problem before but it solved after reinstalling os x lion.
Did you have this problem? What should I do?

Sorry, its not an external display. I changed out THE display in my imac. When I hooked up my wife's display it was photo negative and the imac was color. I changed the Universal Settings and the external display went to color and the imac went to photo negative.

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