Colleagues, indeed, Drive Utility provided the zero option and now everything is well. Actually, life is easy. Thank you for your help - Per Brodersen __ "Just when I thought that bicycles no longer existed I saw a woman on one." - Michel Contat Per Brodersen (Ph.D. Candidate, Heinrich Heine University Duesseldorf) Winsstraße 16 10405 Berlin, Germany mailto:per.brodersen at berlin.de http://www.perbrodersen.de