Apparently, I managed to offend zaphod so "he" does not even let me to log in. Balazs -- Balazs M. Fekete E-mail: balazs.fekete at unh.edu Water Systems Analysis Group Complex Systems Research Center Institute for the Study of Earth, Oceans, and Space University of New Hampshire Phone: (603) 8620270 Morse Hall, Durham NH 03824 Fax: (603) 8620587