Bones won't rotate/scale/move anymore

Hi folks,
don’t know what happened, I imported a chracter in my scene, complete with armature and pose. Then I tried to change it, which worked well at first. Pushed ^z then by accident (and maybe some other keys), the pose reset and now the only thing I can do in Pose mode is moving the armature via moving the back (main) bone. Can’t even rotate the backbone nor rotate/move/scale any of the others. When I try it gives me the amount in the status bar but movement: El zilcho.
Anybody had that problem/ has an idea? It’s driving me crazy…

solved: me stupid, had the ‘move oject centers only’ pushed.