thank you john, that really helped
cheers,
jerrard

no - I've tried several files and downloaded a new copy of sketchup - same issue.

hi.
I am trying to export a 3d .dxf or .dwg file to use in vectorworks 11 but I get a window that says 'exporting model' then immediately a window that says skp2acad AutoCAD export audit : OK This hangs forever and if I click ok on the export audit window everything stops. Any thoughts?
(Mac os 10.5.8, sketchup 7)
thanks