Ok so there's this weird thing in my game.  It says that my tool tray is full, but there is one space left.  Then when I click on that space as if I were pulling out some thing, I do have something in my "hand" 'cause then I can't select any of my peeps or anything.  But it is invisible, and I can't sell it back to the store.  So I just have this empty-or useless-space on my tool bar.  Does anyone else have this?