when i try to do a combat takedown, shift and right mouse button, i keep getting the aim gadget ? aim gadget is also a right mouse ? how can i get combat takedown : do i have to be closer to opponent ? thanks also, game crashed, i had to start from beginning, i was at point in demo where i had crawled through vent system; when is 1st checkpoint ? in boutgt version can i save ? how can i run game in safe mode ? thanks