Hi gang, Im in the process of putting together my first real scene (woo-hoo!), its fairly simple, a room , a table, a shelf with books and a model sailboat on it. Ive ran into a little problem that seems to keep repeating itself. I created some books in a separate file, and shaded them using texture maps I made in photoshop. When I copy the books into my scene the shaders are all rightat first, but at some point my beautiful book covers vanish and are replaced with other shaders that are part of the scene. I have the same problem with the sailboat. I thought perhaps the problem came form leaving the shaders with generic names ( la shader 23), and when copying the object into a file with another shader with the same generic name, that caused the trouble. Well I went back to my book file, named all the shaders individually, tried again, and the problem persists. I just reopened my scene after working on something else, and my book covers (and spines, and backs) have again vanished. Would I need to import the shaders separately from the objects and reapply them ? Any thoughts? (I hope I explained this clearly). Cheers, Max