hi, please have a look at http://www.slac.stanford.edu/~azzolini/q2fit/talk.html for a status report about q2 fit. cheers Virginia ----------------------------------------------------------------- .*. A neutron walks into a bar; /V\ he asks the bartender,'How much for a beer?' (/ \) The bartender looks at him, and says ( ) 'For you, no charge.' ^^-^^ -----------------------------------------------------------