This problem has been bugging me for some time now: I used to be able to drag files, hover over a folder (in the finder window or in the finders sidebar) to open it and then drop them. Now This doesn't work anymore. I have to open both folders to drag-and-drop from one place to another. This is becoming a real drag (pun intended, though not intended to be funny per se) Can anyone figure out what is going wrong? Or any one with the same problem?