But here, looking out of the opening in the building, I see loads of dratted unwanted light, and yes, I HAVE clicked on "Disable Sun Light". Help?

Measure your mind's height
by the shade it casts.
Robert Browning (Paracelsus)

Fran's Freestuff

http://franontheedge.blogspot.com/

http://www.FranOnTheEdge.com