Crashing every so often and starting to get annoying

[Baron Bonghits]

After an hour or so of play (varies wildly, can't see anything in common between the crashes), Mount and Blade likes to crash on me, with a 'has stopped working etc' popup giving the following error information

Problem signature:
  Problem Event Name: APPCRASH
  Application Name: mount&blade.exe
  Application Version: 0.7.3.0
  Application Timestamp: 490b190a
  Fault Module Name: Newton.dll
  Fault Module Version: 0.0.0.0
  Fault Module Timestamp: 44753364
  Exception Code: c0000005
  Exception Offset: 00025388
  OS Version: 6.0.6000.2.0.0.256.1
  Locale ID: 1033
  Additional Information 1: 01cd
  Additional Information 2: 46e825d010babe4084c502621cb5561d
  Additional Information 3: 3f36
  Additional Information 4: fcb02090387b098446efa5db5a386be5

I'm using the battlesizer mod, and a while ago in 1.05 or something like that I would get crashes from running out of VRAM with obvious graphics glitching beforehand, but this is independent of battle size (happened in a 25v20 battle just now), and terrain, and what is Newton.dll? Something physicsy? Should I turn off ragdolls?

System is E8400, 8800gt, 4gb ram, vista64 - but I stress I was playing older versions on this same computer when I got it a year ago and never got a crash like this unless I cranked battlesize to 300+

Getting this both with graphical enhancement mod and on a fresh install on without it after I thought that was causing it

 

[premah]

I'm getting this too.   I'm running a completely different rig (AMD Phenom, HD4850), so I wonder if it has something to do with vista. (can anyone else provide input on this?)

Fortunately it's very rare on native, I usually get it while playing mods like Lords and Realms or Sword of Damocles, especially during sieges. As far as I know Newton.dll controls ragdoll physics, so disabling ragdolls helps a lot (maybe eliminates it, but i'm not completely sure), while lowering texture detail also seems to help for some reason.