Beth I'm not sure but it sounds like you have the original Bryce 3D without the patch. You have to be sure Autokey is OFF. (click the white globe on the bottom right of the screen to be sure you're in time mode (not selection mode). Then click the triangle to the left of it to get the little menu. Be sure Autokey is not checked). Then, whenever you go to the terrain editor look for the lit golden key at the bottom. If it is lit (bright color) then hit the - next to it to delete it before you exit the terrain editor. Spit