ActionScript 3.0 :: Mouse Click Necessary To Use Keyboard Controls After Changing Frames?

I have a 4 frame game that moves from frame to frame depending on what the player does.On the first frame, I have an intro and a button to get to the main portion of the game, frame 2.  The frame loads up and the game code runs, but until the player clicks again on the stage, the keyboard controls do not function.The code for the button is straight forward. I have a button object and the following code in the frame:
 
playGame.addEventListener(MouseEvent.MOUSE_UP, goodLuck);    function goodLuck(evt:MouseEvent): void {        gotoAndPlay(2);        removeEventListener(MouseEvent.MOUSE_UP, goodLuck);    }