Thank you mr. Wade. The problem was with scales and with the fact that
preview (not preview2) does ignore scale informations. This made me
understand that the treatment of scales was very different. With the
right informations everything works OK.
Thanks and best wishes, ferdinando
--
Ferdinando Villa, dr.
Institute of Ecology Direct phone: +39-521-905615
University of Parma FAX: +39-521-905665
Viale delle Scienze e.mail: villa@sparrow.bio.unipr.it
43100 Parma, Italy villa@aida.eng.unipr.it