#14 is dead on. Incidentally -- P6 cannot handle more than a certain number of infinite lights in a scene, and will generally fail to render after that. This is noted in the P6 manual, as well.

thou and I, my friend, can, in the most flunkey world, make, each of us, one non-flunkey, one hero, if we like: that will be two heroes to begin with. (Carlyle)