That's why SKP format did work and bring up the mesh dialog box though - MoI does support writing curves to SKP format which it converts to polylines during the meshing process.

But for LWO or OBJ formats though you need to have surface data which will get converted into polygons, not just curve wireframe data.

So that actually fits more with what you are describing, sorry about going off on a tangent - I should have asked you for an example IGES file that you were having the problem with.

So if that's the case the problem though is that you need to get an IGES file that has surface data in it and not just wireframe curves.

- Michael