"Can you elaborate on the relationship between shadow cams and lights?" pookah69, All I know is that the "disappearing shadow cam glitch" happened to me more than a few times in Poser 5. In fact so often that I was confusing it with standard behavior. But it may well be one of those glitches that were fixed in SR3, because now that I am trying to repeat this everything seems to be fine. I can add lights manually and they do have shadow cams. Sorry to have worried you for nothing.