double dotted line box elimination and access denied

Two questions: How can I get rid of the double dotted line box that overlaps the illustration above?  It may be a extra art board outline.  I don't know how it happened.  Also--when I try to say changes on this art or even different art from another file--I get a "access denied" alert which won't let me save changes.  How do I correct the access denied problem as well?