Hi All, I can't seem to get a decent answer on this. I have my new rMBP. I love it . However, my old MBP ran at 1680x1050, and that's the resolution I like. I turned the scaling up a notch in the settings, but some people have mentioned that this may cause graphic anomalies or performance degradation, due to the scaling that the GPU needs to do. Can anyone report back on this? Thanks!