Mystery Bone Spin

Ok, this may or may not have happened to everybody before. I’m trying to create an action on a armature, but at certain points, 1 bone spins around when it shouldn’t spin while I perform an animation. Any idea on how to stop it?

did you do a ctrl N ( recalculate bone roll angles ) in edit mode before rigging?

Did it and it didn’t work. I’ll upload the file so you know what I mean. I made it in 2.49B

http://www.mediafire.com/?f39dadkud3ijpav

I got it fixed now. I just had to be careful on posing it.