I have an even dumber question....hehe What is it with this ** for your eyes only ** deal, does that mean the others can't read it? If so, why don't you send it private? If not, what is it for then? Doris Dos-User Universit"at Augsburg Lehrstuhl f"ur Produktion und Logistik Universit=E4tsstr. 16 86135 Augsburg Tel.: 49 - (0)821/598-4043 Fax: 49 - (0)821/598-4215 E-Mail: dos@Wisof5.Wiso.Uni-Augsburg.DE :-)