Recently I've been trying to upgrade my age old HP Media Center 876x. I've bought everything and got a new case for in it. I've taken out everything inside my old comp to my new case but I can't take out my mobo. I've taken 7 of the 8 screws the hold it down but the last one wont budge. It is the H7 one connected to a golden flat head nail on the other side of the panel. When i tried to screw the nail lose on the inside it just messed up the cross. I've tried everything but I can't get it out. I was hoping someone knows how to unscrew it because everybody else with this comp has no prob with it. Please Help.