Hi to all, I didn'i think to receive so many replies to my mail on metric units. I was only joking: I know that the conversion will not be costless. I only meant that people using the metric units should not be sorry in usig them and that on the list the units used sould be metric ones (when possible: I don't think to abandon the magnitudes ;-)) Ciao, Fabio Falchi falchifa@tin.it