I have had this before, and never solved it. THough on later thought, it occurs to me that it is likely a problem with too many alterations to your original cloth setup causing POser confusion. You might try locating the .dyn file and deleting just it, then retrying your simulation as opposed to going through the whole save delete process? Of course, you may wish to save your scene as a pz3 the first time you try this }-) Good luck! Shogakusha