I have been following this topic with interest. I'm new here and also new to EN. I was having the same renaming problem. Renaming doesn't work exactly as it does in Windows, After right clicking and choosing "Rename" you must hit "Enter" on your keyboard for the new name to stick. In Windows 7 the folder rename function usually sticks by just left clicking anywhere outside of name field once you have typed the new folder name. So to recap... In EN you must hit ENTER on the KEYBOARD after typing the new note or new stack name. New name will not stick with just a mouse click.