2012 MBP, i7, hi-rez (not retina- 1680x1050 resolution.) I had to replace my screen and now I cannot kick it up to 1680x1050. I thought the wrong clamshell was shipped, but after swapping out the first one shipped, I now think it is simply that it needs a new profile for it. But... how do I update the prodile for this screen (which is likely of a different maker than the original.) Any suggestions? Oh- and I have reset the SMC.