I'm on the basic lighting guide from the rock star website and it says the create a room then make a box shaped mesh from the ceiling. I press SHIFT A on the ceiling then create a square shape. Fine, but the box sticks out from the outside of the room on the ceiling. I point at it then press up arrow which makes it stick into the room from the ceiling. Excellent looks like a light. But, when I point at the light from the floor of the room there’s nothing there so I only point at the top of the light. I press F6 and L but it only lights up the back of the box! Therefore I cant create a decent light! This has been bugging me for days! Please help me dudes! It would be much appreciated!