Dear all, in a desperate attempt to stop a rebellion against the mailing list, I have configured mailman so as not to send a message also to its originator. Please stop sending private e-mails: I promise I will solve all the problems of the mailing list software. Ciao, Roberto -- Roberto Bagnara Computer Science Group Department of Mathematics, University of Parma, Italy http://www.cs.unipr.it/~bagnara/ mailto:bagnara@cs.unipr.it