Well, a CL tech finally got back to me and said it's probably the hair on all my figures that's causing the problem. I created 12K hairs in the hair room for each figure. I figure I can eliminate a couple of them and use just the scull cap to acheive the look I need in this one. Anyway, I'm just about done recreating the file and it is rendering okay for now. Come to think of it, the other file I referenced that I couldn't render in FF too had 5 actors all with extensive hair. It would seem for now that the P5 hair room & FF doesn't play well together unless it's pretty simple stuff. I think CL is going to have to work on that if they want to be taken seriously by proffessionals. Thanks once again to all of you for the help. I've learned a lot more than I knew this morning.