I just bought Walking Dead S1 on Steam and installed it. As soon as I start the game my screen goes completely distorted. I took a print screen of it and uploaded it with this post as an attachment. I'm running OS X 10.10 PB2 on a rMBP 15" Late 2013 with 750m dedicated video card. I tried to switch to only use the Iris Pro with gfxCardStatus to see if it helps but that will only give me a completely black screen when I start the game. I tried google to find a solution but couldn't.. Anyone else experienced this problem and found a fix?