Hi Stefan, usually a severe system crash like you describe is due to some kind of bug at the video driver level.

The way operating systems are designed, regular application code like MoI are run at a contained level of privilege so that they can't interfere with other applications or with core parts of the system.

But typically drivers operate at a higher level of privilege and if there is some bug where a driver accidentally scrambles some section of memory or something like that, it can stomp over core parts of the operating system.

Since this probably involves some particular driver that is specific to your particular machine, it's generally a difficult thing for me to do anything about. On a Windows machine I'd recommend updating your video driver to the latest version. On OSX that tends to be more difficult because you only get drivers with operating system updates and not separately.

One thing you might check is if the machine has been running under a particularly heavy workload for a while and running hot, make sure there is decent airflow to it, like you have some space around any fans it might have instead of having it pushed up right close to something in a spot where it has an exhaust fan.

From your crash log, it seems that MoI ran out of available memory at some point when it was trying to do some work, that's probably related to what is causing the crash. You will probably be able to get more reliable function if you break your heavy file into a couple of different pieces and work on them separately instead of having so much stuff active at the same time that MoI is right on the verge of running out of 32-bit memory space.

- Michael