hi list, it seems to be that the option Dx with pstThreeDCoor works, but dx does not: \psset{unit=.1cm,coorType=2} \pstThreeDCoor [linewidth = 1.5pt ,xMin = -100 ,xMax =20,yMin=-20,yMax=80,zMin=0,zMax=80,IIIDticks,IIIDlabels,Dx=20,dx=20] this has the same output as without dx=20 any suggestions? d