I’m doing some work with flash.ui.Keyboard today. During testing in the Flash environment, every time I pressed (for example) the ‘F’ key, it was shifting focus to the Tools ‘Fill Transform’ tool and therefore not registering the event. To get around this, I made a copy of my shortcuts and removed all the tool shortcuts. However, the Keyboard was not registering Keyboard.BACKSPACE presses and some of the other keys. After some poking around, I found this little number when previewing the SWF … Control > Disable Keyboard Shortcuts. Duh! This makes sure than the IDE is not receiving the Keyboard events during preview.