Somewhere in the process of transfering files, some class names were turned to lower-case;
And (can you believe it ?) there are languages and OSes where case matters... ;-)

Anyway, it's fixed now. Thanks to those who send me a note about the problem.
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                  J-P. Rosen ([log in to unmask])
      Visit Adalog's web site at http://perso.wanadoo.fr/adalog