Dear all, As you have probably noticed, this list has been used by a few indelicate people lately. Until we find a better solution, all posts will from now on have to be approved by a list administrator before being sent to the list. Sorry about that. Christophe -- Christophe Geuzaine Tel: (626) 395-4552 http://www.geuz.org Fax: (626) 578-0124 mailto:geuzaine at acm.caltech.edu