Those FireFlies need to pedal faster in you system. Or maybe you need a few more to get it moving. =P I was playing with a not-too-complex scene that I had done in P4. It was a dungeon with 4 lights and a torch and an untextured Mike and Vick. It would render in about 1 1/2 minutes in P4 and about the same in P5's P4 engine. I tried it in FF to see what it would do. It did ok in draft mode, but switch to production mode and it never finishes the render. I waited 30 minutes and had a full bar on the render and a black, blank box for the picture. So far it looks like FireFly was made only to make the P5 characters look good because they look like crap with the P4 renderer. I am not at all pleased. =(