Chronic Logic

So I downloaded the game after seeing it on steam and hearing good things about it; I was going to try this guy out. Well after installing I decided to try the tutorial and start building some bridges. Start tutorial listen to into and try to place a piece and bam; frozen game. Alright lets try it again. Reboot the game and get about another 3 seconds into the tutorial and it freezes again. I am running a Sapphire 6870 GPU and a AMD FX-4100 CPU and it runs BF3 like a dream but can't run this? I am confused and disappointed that I can't play this game cause I really wanna try it out. So I am wondering if the game wasn't meant to be for AMD or if anyone else is having issues.