Ed, I have to believe that FabriWin has the ability to read a .dxf file which means that it is the ProE conversion that is not coming in correctly. We've had some similar issues with FlowMaster. We've found solutions to these problems by using (if possible) 2D IGES files, and trying different setting in the DXF and IGES export environments (DXF Version, Spline type -polyline or spline, etc) until we found the combination that works for us. Regards