I use a shortcut key set up as: Alt+S ...... IncrementalSave, and use it frequently.
- Brian

Yep, the entire machine crashes, and it just happened right now again. Alt+S sounds interesting.

Hi ed17,
Sorry to hear that your machine crashes.
I find MoI to be very "robust," and do not have problems with crashing with Windows 7 and a late model Asus motherboard and good NVidea Graphics card, home assembled.
You have not said if your files are huge, nor described your computer and video card/drivers...

Sincerely,
-Brian

hey, you can maybe use AUTOHOTKEY and write a little Script. Its easy to use, AUTOHOTKEY :)