Yes it normally works for me.
I guess that the lock-up & crash occur in a way that prevents MC from starting to write any logs.
I don't think I have any background processes which could interfere with this + it only started recently.
Is there anything else that I can look for?
HDD sleep settings when moving things between drives is the only thing that might be relevant. I have noticed the 'egg-timer' circle come on & delay ops on occasion, I am checking to see if I can see why the sleep timers may be a bit skewed.