O.k. I did for sure what Tyger_purr did since the previous post said to use find replace. I created the light set. Closed Poser. Opened .lt2 in wordpad. Did find and replace spotLight with light00. Saved the wordpad file. (did not check to see if it had .txt on the end.) Reopened the file on Poser launch. Used python script to delete old light set. Applied the modified light set. Rendered. Still no shadows. I'm not sure if wordpad changed the extension, but the lightset applied. I was suspicious that it hadn't changed anything, but I could see the altered code in the wordpad file. I saved over the original lightset from wordpad. Should I name it something else? Did I go wrong anywhere else in the procedure? Also, I am interested to know about working with the file and the lights after this had been done. Say I delete lights, alter the pose of the figure, etc, etc. (It seems that adding lights as needed is going to be a problem right off, cuz everytime you add one you'll have to go thru this just to see what it's doing.) Can now we just save the file and have the shadows working when the file is opened? Without having to reapply the light set again? I can spend a week test rendering lights. Thanks so much!