

   Version 1 became publicly available in 1998.  

   Since then we have had a large number of friendly 
   responses and suggestions for features to go in future 
   versions.   Thanks to everyone who has responded for 
   their enthusiasm and suggestions.  

   Particular mentions for Philip Laven of Switzerland 
   for his painstaking version 3.0 testing and 
   suggestions and to Marko Riikonen of Finland for 
   his valuable comments on simulations and program 
   features. 
    
 