hai friend i can understand ur problem and if it is with ik i will tell u how to solve it its simple i maya u just go to animation module and next skeleton in menu bar next u just SWITCH ON (tick on) ENABLE IK HANDLE SNAP and u SWITCH OFF ALL ( there must be no tick)OTHERS now u make the fk then have ik and animate ur total skeleton and u will not get any problems, ok ENJOY RUBBER KIDNEY