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elgrecomac

macrumors 65816
Original poster
Jan 15, 2008
1,163
162
San Diego
I own a 2007 edition of a MBP 2.6ghz with all OS updates installed. I also own a 30 inch external Apple display. I have an unusual problem with the external display:

when the colors are set to 'Millions', the external display has issues with the refresh rate. i manifests itself with light red horizontal lines on the screen in most notable in the white areas of the screen. It is also there when the colors are set to 'thousands' but not as pervasive.

This problem seems to come and go...some time it is there, other times it is not.

Any suggestions or is this a hardware issue, MBP or display.

Thanks, all.
 
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