i need help!! you see i had turn on shaders and then i quit out of it and go on single player and it dosnt have shaders on it so i check back and shaders are off do i have to buy it?? do i have some problem with my computar and i want the fluid blood that gos on the floor not that gos threw the floor i would it if you guys help me zekew169

Well, Your computer may not have a good enough graphics card thing.

Your computer can't support shaders.