Thanks for that, that will be a lot clearer. I'm assuming you also changed the current diffuse button to "Normal Only" but forgot to mention it.
BTW did you see my other skin viewer-related post in the Skinner Team forum?
I didn't do that, because the normal map is also used in both specular and in environmental lighting. Hence relabeling it also could cause some confusion.
The lighting terms typically used are diffuse and ambient specular and Emissive , hence why it labeled diffuse.
HiTech