I just installed Draftsight for the first time, on Windows-7 64-bit. Installation went OK, registration as well.

Now when I try to save, or open any file, Draftsight closes immediately. No errors, no warnings. Just selecting File, Save and the program disappears. Same with File, Open, or File, New. It just disappears, and leaves no trace. The system event viewer is clean, shows no errors either.

Any thoughts on how to fix this?