[Wids]

I've had some problems with running NWN under Windows 8 in the past...nothing too insurmountable, fortunately. I hardly ever had any problems running NWN under XP or 7. (Analysis: Windows 8 is a social media whore and an ungainly and unnecessary hunk of bloatware-fueled crap.)

But I think NOITCA nailed it. If NWN crashes but stays resident, do like he said and open the Task Manager, then manually kill nwmain.exe from there.