Hi Charlie, yes if you turn on control points those red squares you'll see indicate spots that have multiple control points stacked up on top of each other. The math that is used for NURBS curves doesn't really get along very well with that type of situation. The points are automatically adjusted slightly in PDF/AI format import to avoid this but not DXF format import. I can add that in though, can you please send me the .dxf file so I can test with it? (email: moi@moi3d.com or post here) Thanks.

- Michael