Can I repair this? I have three cabinet's lined up on a wall, and one of the sets of anchors fell out. They were toggle anchors, and I don't think they opened in the wall. Now I have 2 3/4" holes in the wall where the anchors need to go. Can these be repaired, and then the new anchors put right back where they were? If I move the cabinet at all, it will not line up with the others and look very strange. Any suggestions??