I pretty sure I'm right but maybe I'm not so some one can correct me but I thought it had to do with how zoomed in you were. When you are out farther it will just show the yellow push pin, but when you come in closer you get the GC icon, similar thing with the names. I also was unaware that you could open your PQ in google earth if that gets ride of the floating caches im all over that. I'll have to try it out.