The shadowmap temp files will block new shaows from being set as they are always creted with the same basic filenames and Poser is set up to use what is already there first. SR4 fixed the bug where they would not be deleted from the drive at the end of a specific frame, which was driving many of us animators bonkers (in my case, it would always lock up on a sequence between 150 and 230 frames depending on the number of shadows). This bug was present in Poser 5 from inception through SR3. What you did not note in your settings was the type of shadow maps you have selected for each of the lights. In my examples above, I used a custom set that has both depth mapped and ray trace shadows at default settings (you can see the marked difference in them). If you managed to get all them ugly temp files (the bane of my P5 existence), then after that it's just a matter of settings. Still watching :)

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)