Add Origin's Achievement popups to the list of possible culprits.
After about an hour of windowed play (ew) I saw a popup in the corner for an Achievement... I have never seen these in fullscreen, although I apparently have like 8 of them in the game. I turned off all notifications from Origin, but there is no option to turn off Achievement pop-ups. I went back into full-screen, and in the middle of a fairly outstanding round of Fighter Squadron it crashed again.
If anyone knows how to disable these please let me know.
The achievement messages use Origin's in game overlay feature to display the messages. If you don't use Origin in game you can disable it for each game or entirely for all your games.
