This happened to me. The one piece of wire that goes along the backbone of the switch has to be reversed, or from _/- to -\_ if that makes any sense. Then the hot wire from the pick up has to be put on the opposite side of the switch, along the long axis/backbone, not just the mirror image. If you look at the connections on the switch itself it helps. I hope that this is not as clear as mud. I would take a pict, but I am not with my guitar right now.