For those having problems unpacking the Clean 2.1 archive with Stuffit 8 on the Macintosh, the problem has been reported at AladdinSys. Workarounds are either unpack with a copy of StuffIt 7 or download the alternative archive I have temporarily put up at <http://www.cs.kun.nl/~diederik/Clean%202.1.sitx>. Happy New Year, Diederik van Arkel