Ok had my rMBP for a couple weeks now and saw the image retention threads. Well I put the gray background and then did autohide the dock and well didn't even really have to test. My dock is pretty clearly still easily seen after it hides. Well made an appointment to get it looked at the genius bar. Well my real question is if they replace my notebook will they transfer everything over to my new one? Never had an issue with any of my macbooks so this is new to me 