Thanks Wabe. I have all the objects used in the ecosystem saved as .vobs. For some reason though, since the tree was originally saved from an object I created into a prop in Poser, and saved as a pz3, it still keeps looking for it instead of the .vob. I redid the ecosystem beginning from scatch, so I am not sure what the problem is. Since the tree is there as a vob, people should just be able to load it into the ecosystem instead but I will try and sort it again. One of the difficulties is that I have various updates on the computer so I need to erase everything and start from the beginning. I guess I am just going to tuck this whole experience under my belt as a good learning one!! :) Irene