$appactive is not what we are looking for. $appactive simply tells you if mIRC is visible or not. If mIRC were visible, then obviously another program isn't using fullscreen. If mIRC is not visible and there is no fullscreen program running, then we don't want to stop the popups from occuring, since that's the point of the popups- to let you know when something has happened while you were doing something else.
-genius_at_work