see attached for a video. https://www.dropbox.com/s/98nlal8jt7qq8k0/IMG_6005.MOV Basically every reboot, at the OS X 10.9 login screen i get a distorted screen for several seconds, after about 5 seconds it stops and does not occur again when using the OS. It is a repeatable bug as it will occur after every reboot. Anyone else experience this? This is a 2012 rMBP 16GB Ram i7 2.7GHz. Never dropped, no liquid was ever near it.