That model is very "heavy" I think the photo textures are making it very slow. You should be able to move it, try deleting the Google earth layers that came with it. (both layers) to lighten the model. You will need to right click and unlock them, delete, then purge the model to get rid of the textures. You should be able to move it, for some reason that model is very slow to work with. I hope this helps.

Well, I'm not sure what model you downloaded from the Warehouse but my guess would be this (from your description) you had a model already georeferenced somewhere (say location A) you imported another model with a different geolocation (location B) SU aske you if you want to change your (original) location (A) to the new one (B) and you answered yes. Try with "NO" and see what happens. As for the GE Subforum; you are (this topic is) in it at the moment.