Check out this Swiss product: http://www.roesch-swiss.ch/index.php?id=1159&prod_id=81 Cheers, Michael -- ------------------------------------------------------------------ Michael Doob                    Telephone: (204) 474-9796 Department of Mathematics       Fax: (204) 474-7606 University of Manitoba          email: Michael_Doob@umanitoba.ca Winnipeg, MB, Canada R3T 2N2 ------------------------------------------------------------------