I haven't run any mods or anything else of that nature. I did have my laptop connected to a monitor, but I had to pack the monitor as I am moving to Korea, so i'm using the laptop screen now, but I doubt that would be the cause of the problem. I have never had a problem running DCS in the past. It worked perfectly up until a couple of days ago. I can't play the campaign, mission editor, or multiplayer. It crashes stating "DCS has stopped working". Once I click on close, an error messages pops up stating, Loadin debriefing, can not open file debriefing".