Are the rocks, and other items suppose to flicker when i pick them up? Ive just started the game, and when told to pickup a rock, it fliskers so rapidly, it almost looks invisible. When i hold it above my head it looks fine, but if i move it down even slightly, its starts flickering again, it looks almost like a graphical anomoly. Its difficult to take a screenshot, it flickers too fast between not being able to see it, and being solid. Here is the best i got, its a rock:
http://i.imgur.com/Ztupnna.jpg