I have a 2012 Retina Macbook Pro with the 650m. Occasionally I will get random shutdowns and distortions on screen. I am taking it in to an Apple store today to see if I can have the logic board replaced under the repair extension program. Has anyone tried this before or went through this. Also I hope they don't give me issues, I had to replace my screen myself due to burn in issues that they wouldn't fix unless I paid $750 dollars. At the time it was out of warranty so I had nothing to loose, that better not effect the extended repair claim.