hey, i have an external drive that i am trying to remove the hard drive on the internal board. and all but the last screw is removed, i can't remove it because it is stripped. is there any tricks to loosen the screw? i read online that i could use a dremel to cut the screw, so i can use a flat head screw driver to remove the screw. other things i read was to buy a screw extractor. but all i can find are sets online and nothing locally in my city.