H All, why this double definitions? Aren't they the same thing? Thanks -- Ing. Fabio Giovagnini Aurion s.r.l. P.I e C.F. 00885711200 skype: aurion.giovagnini Tel. +39.051.594.78.24 Fax. +39.051.082.14.49 Cell. +39.335.83.50.919 www.aurion-tech.com