We are using acad 2000i , XEROX ST 432, as 11x17 printer. Machines Win2000, Most our drawings are 3D objects, Dispsilh is 1 In 'hide plot" mode, sometimes round 3D objects/profiles- like tubes etc, In layout does not print one edge, or even not at all, but only while this printer-as Acad plotter. Printing to PDF / JPG or other is fine. Any idea how to fix it, sometimes those few missing lines create a problem Regards, Roman