After doing a little digging online I've seen issues regarding the AMD graphics chip. I bought a 2011 iMac brand new and it still works perfect now so I assumed the Pros released around the same time should be A-OK. Anyone have any issues with this model? It was bought from a pawn shop so they have a 7 day return. I've been using it for a couple days now. Running updates and migrating data.. did some Photoshop testing, 1080 full screen playback, connected my 23" Cinema Display and have experienced no issues.