I’ve been working on papervision dragging and to detect when the mouse cursor leaves and goes off/outside the stage bounds in AS3. (Or the browser if the movie is set to scale to fill the window) one would use this listener:

mc.stage.addEventListener(Event.MOUSE_LEAVE, mouseLeaveHandler);

fucntion mouseLeaveHandler(e:Event):void{}

However this event doesn’t fire when the mouse is down while the mouse leave the stage.

” and @ symbols are swapped around on the keyboard making forms requiring email a nuisance. Happens in Firefox.

Event.COMPLETE loading on images fails to execute on Firefox in transparent mode.
Setup an Event.INIT and check the bytes total against bytes loaded.

no MOUSE_MOVE Events will fire, when the mouse is outside of the stage. Making it hard to track the mouse’s return to the browser window.

Overall wmode=”transparent” flash parameter can create some strange bugs so be aware of them before you decide on functionality. Setting to normal gives you a slight performance gain. This will be more apparent on the new mac Flash 10 player apparently.