Are you sure to have installed, not only compiled the new version?

I?m attaching my test parameters, both input and output. As you see it manages to reproduce the expected density distribution.

Dear Michele, Of course, you are right. I did not even compile the proper version |-(. Now, it is working. Sorry for my stupidity and thanks a lot for your help. Dominique -- Dominique Delande (Dominique.Delande@lkb.upmc.fr) Laboratoire Kastler-Brossel - Case 74 - Universite P. et M. Curie 4, place Jussieu, F-75252 Paris Cedex 05, FRANCE Phone : +33 1 44 27 27 97 - Fax : +33 1 44 27 38 45 Acces : Tour 13, Couloir 12-13, 3eme etage - Bureau 316