By the way, do you use a 32bit or 64bit version? Is 64 bit version as stable as 32bit one?
I dev and test on two versions (xp 32 bits + seven 64 bits) depending days and my localisation, and didn't experienced yet any unstable bug in the x64, I noticed the additional contribution of memory provided by x64 (marchin cubes and mandlebuld works better with it for examples).