Unity 4 mecanim retargeting problem.

When I retarget my avatar in the configuration window, everything turns green:

![alt text][1] but it goes away after I hit APPLY!!!! ![alt text][2] Why does it do this? Why isn't my rig retargeting?? Please help.

PS. I am using an fbx file exported from blender 3D Please do not tell me to look at the new youtube video. I watched it a lot of times and it doesn't help with this particular problem [1]: /storage/temp/7462-retargetting1.png [2]: /storage/temp/7463-retargetting2.png