One UX issue with the cascading menus in Start menu was when you had to navigate several levels deep to open a program. Since the menus expanded and collapsed o

One UX issue with the cascading menus in Start menu was when you had to navigate several levels deep to open a program. Since the menus expanded and collapsed on mouse hover every once in a while accidentally moving the mouse in the wrong direction meant all my menu navigation progress was lost and I had to start over.