When I ask for help, and I get directions, my buttons are not the same buttons as the directions. For example; I recently asked about lighting. I was told to go to preferences, then graphics, then advanced, then atmospheric shaders. Well, The preferences, the graphics and the advanced are all there, but the atmospheric shaders button is not. This happens all the time I ask for directions. I follow the directions, but my buttons are not where they said the buttons would be.