I'm running the latest version of DraftSight on Ubuntu 12.04 LTS (64 bit). The trouble I'm having is some files won't open, they are usually larger more detailed drawings I have done and opened in the past with no issues (I drew them on AutoCAD).

Whenever I try to open these .dwg files I have to force close DS and try again but it never seems to work. In fact it's only this and another drawing (out of about 10 or so I need to use) that will not open.

Any help in getting these to work?