As a temporary measure, all mail to triples.math.mcgill.ca should now be sent to fermat.math.mcgill.ca. In the future we will probably install a dept server and use the address math.mcgill.ca for all. This will avoid a disaster when a machine goes kaput. What happened is a long story, but I have bought my last Sun computer. I'd sooner do business with a used car salesman. Michael =========================================================================