I agree the error message is worthless. Unless your psychic. I've had earlier versions of DF where it would'nt work either and a few it seemed to work perfectly on. I'm not going to mess around to much with it. DF does its job otherwise and I really cant complain. I was just curious that it might be a bug in this version but if it works fine on your machine then its probally my machine. I thank you for replying.