Hello again. Does anyone have any idea why the function for adjusting the graph-area matrix may not be "responding"? I am trying to change a 2x2 layout into a 4x1 by code. The first time I ran it, it worked. Now it's not responding. My tryout code is the following: In text: decl u = rann(100,1), x = cumulate(ones(100,1)), t; t = 0; SetDrawWindow("test"); DrawXMatrix(t, u', "", x', "", 1,1); ++t; DrawXMatrix(t, u', "", x', "", 1,1); ++t; DrawXMatrix(t, u', "", x', "", 1,1); ++t; DrawXMatrix(t, u', "", x', "", 1,1); ++t; DrawAdjust("ADJ_AREAMATRIX", t,1); ShowDrawWindow(); Any thoughts are appreciated. Thanks! Regards, Victor.