Closes right after opening

We are having issues with Draftsight on a couple of computers as of today. We open Draftswight, but after a short blink seeing the application, it closes without an error and that's all. We have tried download the lastes version, as well as running old versions. I have done a clean install, removed appdata folders, programfolder, deleting registry, set default browser to IE. Nothing works, I'm not sure what to do next, I'm stuck at the momemt. Any advice, or any tip on what we can do to resolve this?