A Invisible Wall

This is a continuation of my last post since the problem still exist in the same file. I’m using Blender 2.49B and after I fixed the speed problem. Now all of a sudden, there’s a yellow dot stuck in the middle of the path. Once my rig reached the yellow dot, the rig just walked in place. I tried clearing it and it is still there. Any ideas on how to get rid of it?

Well, I had to change the IPO curve and it was fixed.