news.ind.net <jclack at iupui.edu> wrote in message fXW77.15$wj1.59092 at news.ind.net... > Try this (Bio-Rad instructions): > > http://www.bio-rad.com/cmc_upload/0/000/013/280/M1703930E.pdf thanx so much! Stefano gifalone at tin.it http://web.tiscalinet.it/gifalone ICQ 110419911