yakup murat mert wrote: > clear all > > instruction closes everytihing including octave .... > I can't reproduce this on my Mandriva 2008.0 machine with Octave 3.0.0, 3.0.1 or 3.1.x.. What OS and version of Octave are you using? How did you get you version of Octave? The information you gave is insufficient to help you at all.. D.