I have to say, for me, so far this has been a very stable game. I have (or my system has) issues with hardware mode, it seems every game I play crashes. So, with W&W I went right to software mode and last night was the first lockup I experienced. I was wading through some waterways and tried to climb/jump out. It seems I made it about halfway and was stuck, in the wall/ledge where I was trying to get out. Had to power down, the game (and my computer) would no longer respond.
So, with the ensuing reboot, scan disk, bootup and load the saved game, the kitchen is almost clean now
Tools for your Wizardry(r) toolkit