What a coincidence, yes, I am using poser 6 and I just found this out minute ago by searching poserpros forum and found your previous post about exact same problem over there. I've disabled the external save and the morph works like it should now. :)

I do have one more question, if I want to take this further and create a pz2 file, how would I go about doing this? Do I just create a empty pz2 file and transfer the morph to that one?

I really appreciate your help.