I have had similar problems with Neftis' hair before (Yann hair and Casual style, and now the Julian hair). I am running a 1.3GhZ Pentium, Poser 5 and 256 mb ram. Yann hair will hang up during the "Adding Objects" stage about 1/2 the time. Same with the Casual hair. I have not had a lot of time to play with the Julian hair, but it hangs in about 3/4 of the renders I've tried it in. So, I loaded P5 on my other half's computer, loaded M3 and the hair and clothes. He runs a P3, 1.8 GhZ with 640mb RAM. It took a while, but it did render a file I could not get to work at all on my system. (Actual render time was just under an hour.) The file consisted of M3, the Born to be Wild pants, Julian hair and Hi-Res Universal textures. Firefly render with one shadow mapped and one raytraced light (and one with no shadows at all). What causes this? I have no clue. But I do know that Neftis' hair WILL work with the Firefly render engine, though it takes time and a powerful system. And, dammit, it's worth it. Thankfully, we're networked and I can pose the image on one system, drag the PZ3 file to the other and render there. Hope this helps someone else, Shawn