It runs great nowadays. Before the patch, it was extremely slow during renders, but now I enjoy using it entirely. The Interface itself is a touch slower than PPP, but there's a lot more functionality, and I can do more with it. Program load times are no different for me than PPP was. I haven't seen Firefly cut off any heads, nor have I seen any exception errors. The FF renderer was at first slower than half-frozen dogshit sliding down a gravel driveway on a January morning,but the patch cut the time down to a reasonable level, and Nerd's tips helped cut the time down to something approaching Poser4's speed, evne in Production mode. Render lockups? nope. No library hangs, either. I'm using Win2k on a Dell laptop with 1GHz/512MB. HTH a little, /P