You can turn that off; I think it's incompatible with certain video cards.
I've been looking forward to this for a while. I'll definitely play it all the way through and give a more full review later. However, I have to say that the first time I stepped into the metal lava, the game adapted a motion blur effect and the fps dropped to around 5 or 10.
Anyway, it's a fantastic game as I've said many times before. We're lucky you give these things away.