How about raising recursion_limit a little? If
I'm not mistaken, thats what sets a limit for
light bouncing off of other areas (so your "light-source"
might light the lamp (limit 1) bounce off and hit another
area (limit 2), and thats it. But I could be wrong. Try raising
it to 3 or 4, maybe even 5, and see what happens...
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde
de