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I ensure that everything is in working condition. I really don't go through it with a fine tooth comb.
 
I don't go out of my way looking for defects. If something is glaring enough, I'll notice it and decide if I can live with it or seek a repair.

I easily lived with this on my iMac for the last year or so, before getting around to having it repaired recently.

iMacDisColor.JPG
 
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