i used to keep Thunderbird in my dock and hidden so new mail messages would pop up on the badge thing. I installed the Gmail Notifier menu thing today and have removed T-bird from my dock. The problem is that every time i use t-bird, even if just to send a message, it stays in my dock until i go over and right-click->quit. Is there a line in a plist somewhere that determines how the app acts so i can change the X to make the app quit?