I've got the same problem and I'm running on a good system. I found that after the first load and crash, when I load it again  I get the mircosoft crash box (I don't know how to refer to it), but it will still load the sim. Kinda weird. We are on a forum provided by the developers and I have to wonder why they don't give any suggestions to this issue. It would be nice to see a update, but I'm sure they're more concerned with patches for fsx. It's possible it's a video card or drivers issue. I'm running a Nvidia card.