In any windows system this happens: - show your desktop - move your mouse over an icon - keep pressing 'home' on your keyboard (home key brings the focus to

In any windows system this happens: - show your desktop - move your mouse over an icon - keep pressing 'home' on your keyboard (home key brings the focus to top left icon) and then left mouse button (changes the focus to the icon you're over) - do it faster and faster (home, lmb, home, lmb, ...), focus will jump between top icon and the icon under the mouse pointer - when you reach the double-click speed, the icon will be launched but it will not be the icon under the mouse pointer, but the top left corner icon.