Does anyone know how to turn off editing in cdf files so they can not be changed by students? I know we can set the Notebook properties in the Options Inspector but this can just be changed by the student. I notice that in the cdf toolkit pack there is an example file on Mandlebrot and Julia Sets. Somehow this file is set so that it can not be edited. The option inspector shows that all editing options are set to True i.e. we should be able to edit but it is "locked" in some other way?? so it appears that this file is maybe "deployed" in a way that prevents editing? This is exactly what I'd like to do.