I have the new 15" 2011 Macbook Pro, with 8GB of ram and a quad core i7 processor. Graphics card is a AMD Radeon HD 6490M 256 MB. The game starts up just fine, and if i am standing still everything appears normal. Upon movement, however, the ground around me kind of moves with me, going outside the boundaries of the 1x1 square. After about half a second of moving out it moves back into place, but keeps moving around me. Also, when i move the surface changes, the small bumps all over the land change whenever i move, and this has been very annoying. Please help fix this, if i need to i can post a video of this problem.
Heres the vid: http://www.youtube.com/watch?v=csvVoZycX38