DraftSight was working fine this morning, closed the drawing I was in (which closes DraftSight), a bit later I went to open another drawing and this warning came up (refer screen print) and I can no longer open DraftSight. I have uninstalled and reinstalled DraftSight and restarted computer with no success. Any thoughts.....

p.s. it was working fine until I used the tool matrix feature, worked the first time then not.... may be of consequence? Also have tried to give it a reference drawing to open....

please advise.

OBO: Shane Holtkamp