Can anyone figure out what happened to my aperture display. It appears that the program believes my screen is larger than it is. No matter what I do (and I've tried almost every command I can think of) will get the picture centered in the display. I tried repairing permissions and that didn't help either. The only thing that has changed is that I recently performed software update. Please help as this is incredibly annoying and I really don't want to re-install aperture because of this.