Replying to Look Rossi Binding Problems

I have a pair of Rossignol Axial 100 race bindings, and I've noticed that there is play in the pivot on the heel peice(the actual pivot for the binding, not the turntable), It seems like the rivet, or whatever has loosened up, does anyone else have this problem? Can it be fixed, do i need to worrie?

Also, Ive noticed my friends looks have play, but its at the base were the turntable is, mine is the actual heel barel peice.