Matt, as to the following question: QUESTION: I do not seem to have, in tcsh, the command "configure" I think I solved this one by entering the /Users/stefano/Tk-804.027/ifeffit-1.2.5 directory I am proceeding with the resto of the indicated protocol, so far not caring about the downloading directory (I am using my home directory right now). Please let me know whether I can change the Tk-804.027 directory from my home directory to where it is more right to move it (which I do not know). Thanks, Stefano -- ____________________________________________ Stefano Ciurli Professor of Chemistry Department of Agro-Environmental Science and Technology University of Bologna Viale Giuseppe Fanin, 40 I-40127 Bologna Italy Phone: +39-051-209-6204 Fax: +39-051-209-6203 "Fatti non foste a viver come bruti, ma per seguir virtute e canoscenza" Dante Alighieri - Inferno - Canto XXVI