The button i\'m talking about is up the quit one. Yes, you maybe need some tries before hitting it. It\'s the easiest way to do it because if not you\'ve got to edit some files. (Use the search function)
The attack buttons bug is a known one, in fact i think the bar of the spells is also bugged (as far as hitting an Ulbernaut is concerned lol) and as for loosing the head...
Well we all loose the head in this game but if you can reproduce it you should send a petition so the bug can be tracked.