Yes, although I generally save more then once per 5 minutes. Maybe the autoback timer gets reset when you save? that would kinda suck. The crash on save thing happened yesterday too.
Im having some strange saving and backup problems with max 2009. I have a max file that has about a 5% chance of crashing max every time I save, which is strange but ok because max will backup the file each time I save so I can go back to the last saved version. But while figuring out that it did backup on save i found out…
I had a similar probelm with saving (crashes). I dont remeber if I had probelms with the autoback though... I was running low on h.d space and while the files were smaller than what I had left, they had a 50/50 chance or so of crashing. I deleted a bunch of shit and the probelm was gone. maybe that helps.... check your…