<html><head><style type="text/css"></style></head><body><div style="font-family:times new roman,new york,times,serif;font-size:12pt"> am working through the paper from 2004 on FrTime. There is a clock demo with sample source which doesn't run in version 4.2. I think there are two problems. First, the syntax for match has changed. I tried to update it but I still get the following error. match: date does not refer to a structure definition in: date Second, seconds->date won't work with seconds as an argument. Calling value-now gets pass the error but I'm guessing that's not going to make the demo run correctly? (require scheme/match) (define clock   (match (seconds->date (value-now seconds))     [(struct date (sec min hr day mon yr _ _ _ _))      (format " ̃a: ̃a: ̃a  ̃a- ̃a- ̃a"              hr (pad min) (pad sec)              day (pad mon) (pad (modulo yr 100)))])) ;; pads a number to two digits (define (pad n)   (if (< n 10)       (format "0 ̃a" n)       (number!string n))) Thanks, Scott Hickey Senior Consultant Object Partners, Inc.</div></body></html>