Waldo, It seems that you are trying to get the light to reflect. Light in C (1&2) does not operate like the real world (one exception which I will get to in a bit). Light will not truly reflect off of reflective surfaces and will only go through transparent objects if the Light through Transparancy is checked in the Render Room. This adds to the render time immensely! The exception is in C2.x. The caustic renderer under Global Illumination WILL do reflected light, but at a high render time cost (more so than Light through Trans). You're almost better off doing a work-around. Place a spot light in front of the mirrored area pointing out and then test the render using Light through Transparancy. Don't know if this will help, and I know it is not the answer you were looking for... Best of luck and keep asking questions! Ken