I have just been told about this program, so I hasten to install it in a hurry.
I installed the 2018 version available on the site, everything is going well, no error messing. When I try to open it, the program launches (small Draftsight window) then it opens for a fraction of a second and closes immediately without error message or anything...
I restarted and re-installed but nothing helps.
I have windows 10 and I installed the x64 version.
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