mouseover problem

Well I got this problem, don't know if any of you are familiar with. if yes I'm begging for a solution. I want to change the animation of the box the mouse is hovered over to "over" and the other ones to "Default". I end up with this halp plox!

edit: I also tried:

System: For each Sprite
   MouseKeyboard: Mouse is over Sprite
      > SpriteSet animation to "over"
   MouseKeyboard: != Mouse is over Sprite
      > SpriteSet animation to "Default"[/code:2x6jxddz]

this doesn't work either

+ Always

-> Set animation to default

+ Mouse is over object

-> Set animation to over

didn't expect that to be that simple... thanks