I noticed in the last few revisions of blender that came out, there is an odity. When I choose (b) to select a face of a shape to move the face up, it only moves half the face up. The front and not the back. Why is it doing this. I want it to move the whole face up
there is a button right next to the new edit mode buttons that looks like a cube… when it is on (down) then when you select something it will only select the faces, vertices, or edges that you can see. when off, you can select any of them. if you already knew that then I don’t know what the problem is. : 
zachboy