animating simple bone rotation problem
 

Hi
Ive been trying to animate a fairly simple character with basic rigging done it a million times before...but for some reason when I play or scrub the timeline the bone rotations I have made go crazy... the bone seems to rotate on the other axis or I think sometimes going the long way round to get to a rotation point thats only a few degrees away.
Ive tried putting an IK handle on it even though i dont want one but the problem occurs with that the same.
I seem to remember something similar happening a few years a go and discovered changing to world from local sorted out the problem but I just cant get to the bottom of this...
anyone know whats happening here??

thanks:banghead:

check the help file about gimbal lock and rotation order.