Mathias Vandeperck

I use Daz Studio to create simple animations and a recent problem I've come across is rotating the hip. From what I understand to rotate the hip (for example to sway it back and forth as if dancing) you pin the legs and torso. This works great in the program but when I upload to SL there's a shiver, shaking motion in the legs, chest, arms. Pretty much everything is jittery.The animation looks great other wise and the hips move as intended but all that shaking makes the animation ugly and useless. Does anyone know a solution?