Well, if speakup or another screen review package cannot talk to the synth it sounds like more than just the output applifier. I am reluctant to speculate on the nature of the failure but if you need to call anyone to get it repaired try I.A.M. at (519) 679-4828. They are reasonably priced and good. Kirk -- Kirk Reiser The Computer Braille Facility e-mail: kirk at braille.uwo.ca University of Western Ontario phone: (519) 661-3061