Thanks Michael, I do have version 5. Its really nice. I have been playing around with that gui builder that you put in version 5. I have the "Green Terminal" and the the new "Dark Version" I really have fun seeing all the different combinations of the GUI. Using Moi has made me so curious about Rhino. I will definitly have to get Rhino very soon. I have a trial of 7 and a version of 5. And its so cool the way Moi3D and Rhino communicate. They are like siblings. he he. Thanks for explaning that Gui question. Thanks again Michael. P.s. I read you were thinking of adding a cage edit function in Moi. Did you ever create that function. I figured out a way to do it in moi. But that cage edit in Rhino is very cool. Always admire what you do in Moi3D.