Problem With Recreating An Activity Android

[danielbrthwt]

I am making a android game and at the moment i am working on a simple menu, this menu has 2 buttons one that generates a random map and lets you play it and one that takes you to a list of pre made levels. The problem is that if i press the random map button and run the game activity if i press the back button to return to the menu activity and try to play a random game again it crashes

The following is the function that gets called when you press the random map button

    public void playRandom( View view )
    {
	    Intent intent = new Intent(this, CUBEGameActivity.class);
	    intent.putExtra(EXTRA_MESSAGE, "RANDOM");
	    startActivity(intent);
    }
[/CODE]

how can i stop this, any help would be great

Cheers Daniel