he might be getting the same problem i'm having.
the game randomly stops at some points (with black screen), though the next time i try it goes past the crash point and works for a while longer, until it breaks at another moment/scene. the same scene will be passed normally on yet another try, so it looks more like some sort of loading problem than corrupted data.
also stencil test, which is needed to fix the texture/shadow/sprite corruption causes some graphical glitches like half of the screen being turned into some stretched line.
the game randomly stops at some points (with black screen), though the next time i try it goes past the crash point and works for a while longer, until it breaks at another moment/scene. the same scene will be passed normally on yet another try, so it looks more like some sort of loading problem than corrupted data.
also stencil test, which is needed to fix the texture/shadow/sprite corruption causes some graphical glitches like half of the screen being turned into some stretched line.