Thanks a lot! Again for this kink of fix i get "not a valid 32bit app" (also on XP 64bit virtual machine), maybe it's an hardware issue but my GFX card supports OpenGL4 and the driver is updated: http://www.amd.com/en-us/products/graphics/desktop/6000/6570 ...I'll give you another feedback about the game if will be solved. Thanks again :)