Actualy volfin, I have the same problem. The "Do Collosions" just causes the hair to freak out. If it touches any thing it just turns into a giant frizz ball. This should probably be in a new thead... That was supposed to be smooth flowing hair, not a fro-in-a-hurricane I've tried dozens, maybe hundreds of combinations on settings for the dynamic hair. All produce the same result completely out of control collisions. It looks like the hair rebounds about 6 inches when it touches something. It also sems that the hair is only doing vertex-vertex collisions bescaue sometimes it will fall right through an object. Sorry folks the same guy wrote the code for the hair dynamics as the Fire Flaw renderer. Fortunately the Cloth Room was written by somebody else. While a bit confusing and slightly flakey you can actually produce usable effects. I see this leading to the continused use of transmapped hair. Some of you have probably already noticed the included hair props are built as hybrids part dyn hair part transmap. A hair prop converted to a dynamic cloth may be the solution. Oh, I suppose you could throw a few strans in there for fly hairs, but you'll have to pose them manually. This is fine for stills, but not practical for animations.