As far as I've ever been able to determine that stuttering is common to all RC Systems synths based on the DoubleTalk chip set. It seems to be set off by something I've never fully nailed down. I think dashes before some strings will do it but I'm not really sure what else starts the stuttering. Kirk -- Kirk Reiser The Computer Braille Facility e-mail: kirk at braille.uwo.ca University of Western Ontario phone: (519) 661-3061