Baz, it comes down to which version of all this youre using, more than anything else. For example, I have some great files I made in Bryce 2 that can no longer be read, because Bryce 5 doesnt recognize them. I have to resave them in an interim format, and then B5 will open them just sweet. Now, from what I understand, theres more to the P4 figures than just being remaps of the P3s -- if you look at the two meshes side by side, theres some pretty wholesale changes from one to the other: higher poly count, for one, that allows more subtle expression. But its in the body construction that you really see the difference: the body shape was completely redone - from scratch, it seems -- and as such, morphs for this more complex, more "real" figure just wouldnt translate well. You can probably use them (I havent tries), but I doubt the effect would be what you want.