I noticed a strange issue with my new 2015 rMBP with dGPU. I loaded up Max Payne via steam and no matter what setting its on, from lowest to high I will getting jerking video. I'm not talking about a low FPS, I will move the camera from left to right and it will jerk every 5 seconds, almost light it pauses for a split second but its super noticeable. It did this in Max Payne 3 and Metro Last light. When I played this game on my 2011 MBP I did not have this issue. I assume its probably a driver problem, but does anyone know anything about this? This was running in Mac OS not BootCamp.