Dear friends, You remember that I was not in good shape during the last TC6 meeting. Ithought it was a kidney stone. The first symptomes are quite similar but yesterday my doctor decided that I has a hepatitis. I expect I have not infected all TC6 members. Best regards Ramon ========================================================================= Ramon Puigjaner Universitat de les Illes Balears Departament de Ciencies Matematiques i Informatica 07122 PALMA (Spain) Phone: +34-971173288 Fax: +34-971173003 e-mail: putxi@uib.es =========================================================================