Insert keyframe menu does not show up When I press I to activate the Insert Keyframe Menu (in the 3d-view/pose mode) a keyframe is created immediately instead of showing the menu.

This used to bring up the menu. I must have changed some setting but I have no idea which.

How do I get the menu back?
Seems like you've chosen some keying set in the timeline header. 



You can clear this by pressing the X next to the name if the selected keying set.