Bone selection in edit mode is no longer working I can no longer select a complete bone from its body in edit mode. It only selects the bone end points. I have to use the outliner to select a complete bone. 

This only happens on my main computer, both version 2.77 and 2.78. I have installed blender 2.78 on a second computer and things work fine. Has anybody else experienced this? Been looking around in console and input short cuts but I'm lost.
Check in the inspector that you haven't deselected the mouse icon on the bone as this stops objects from being selected.

Hope it helps.