Using GUI joysticks from StandardAssets(Mobile)...

I'd like to use the Dual Joysticks prefab that comes in the Standard Assets (mobile) package that comes with unity. In the editor, the GUI looks fine placing themselves at the lower left and right of the Stage. However, when i publish to my Samsung Galaxy S 4G, the GUI graphics appear stretched and fall off the bottom of the screen a bit. Any thoughts on why this would be happening? To re-create this issue, simply import the StandardAssets(Mobile) package, add the dual joysticks to the game, then publish in landscape mode. Thanks, CapnJ