invert gravity and mouse following problem

Hi all I'm doing a test by inverting the gravity, plus I'm making the character's arm angle follow the mouse, but when I invert the gravity, the arm goes crazy

this is a image

<img src="https://dl.dropbox.com/u/13512632/gravity.jpg" border="0" />

and this is the .capx

dl.dropbox.com/u/13512632/gravity_error.capx

Remove the 'bound to layout' behavior from the arm. Also you should attach the arm to an imagepoint on the player as y - 24 won't work when it's inverted.

ok thanx for you answer i will check