Very strange -- Power Pivot will not let me view my entire workspace in the Diagram View. I've saved the file, closed it out, reopened it and the "gray" area won't go away. I can't drag it back or seemingly find any way to decrease the size. The +/- zoom doesn't do anything. I've switched back and forth from the Diagram view to the Data view, and then back with no luck also. Has anyone ever ran into this issue? If so, how may I fix my view? Any help is appreciated. Thanks!