Key 65(letter a) Only works once

I was making w,a,s, and d controls for a game with AS3 and pressing Key 65(a) only works the first time. Found below is a code that demonstrates how this only happens to key 65.

I have a Mac OS X Snow Leopard and I am using Flash Professional CS5. Can someone let me know what would be the problem?


Thanks




stage.addEventListener(KeyboardEvent.KEY_DOWN, keyPressed);

function keyPressed(evt:KeyboardEvent):void
{
switch(evt.keyCode)
{
case (68) :
trace("right key is pressed");
break;
case (65) :
trace("left key is pressed");
break;
default :
break;
}
}

Works fine on a PC, CS5 windows 7 pro.

When you're previewing the swf click control, then disable keyboard shortcuts and see if that does anything for you.

Disabling the keyboard shortcuts in the control menu actually didn't work. At least I know now that it's probably a problem with mac's. Thanks