Hi, no is not that, I turn it on in the render settings and also in the light atribute editor, but nothing, also i have the tuts scene, and dont have GI turn on. dont know what it is. One more thing, the material for the floor in the tuts scene looks like have something, because if I create a lambert and assigned to it, and then render, dosent show up the soft red and blue shadows, only with the original material, hope i make my self clear.