Hi folks. I have now hit my FOURTH replacement 17" MBP. Its doing my head in.. I just dont think the screens on the MBP's I have are even. Can people PLEASE do me a massive favour and do a really simple test.. Set the background to black in sys prefs.. OR download the black background i've attatched. pump up the screen brightness to full. Look at the screen head on in a dimly lit room.. What do you see? Do you see a solid black background? I see small patches of difference with black and patches of grey.. i see feint lines, I am thinking this is where the LED's are.. but I just dont get it. Am i being TOO picky, surely the 4 replacements i've had cant ALL be faulty?? Can you good people let me know your findings? I would REALLY appreciate this!