Just got the extreme4 z77 and went to put it in my apevia xtrooper case. The mobo appears to have 7 screw holes that screw into the standoffs. The upper right screw hole in my case is stripped. Whenever I put the standoff in it, all it does is spin around and won't fasten. Should I just keep the standoff in the loose hole or just not use it? There are no other holes near it. Would it short the board? Help!