I received my Retina Macbook Pro and noticed immediately that the trackpad is loose and softer on the bottom left corner. On the bottom right it's as it should be. Is it possible to retighten the screws of the trackpad, like you could with the Classic Macbook Pro? I ask because the battery is fixed with glue and is over the trackpad... so I assume you have to remove the battery which will be rather difficult to do alone and I think at the apple store they will refuse to do it because it might be a huge effort for a minor issue.... Your thoughts on this?