Help! Undo screwed up!

Ugh, this one is a nasty bugger. A teammate of mine is having a problem. While in pose mode, undo is undoing everything. If he hits control z, every single change he has made in pose mode is removed. The character is back to the original T pose. And it only happens in pose mode, the other modes just undo a single action as they are supposed to. I rigged the thing, and when I hit ctrl-z in pose mode, it just undos one thing. I have NO idea what is going on. We have even tried several different versions of blender, but nothing has fixed the problem. Anyone know how to fix an out of control control-z?

It does this because you must have a key frame on the armature, so when you hit ctrl z it resets the armature to the last key frame. As far as I know, this is just how it is.

Ahhhh. I should have known. He was enabling auto-keyframe and not telling me. How nice of him lol. At least with this bit of information we know what is going on and how to work around it. Thanks.