A book that was helpful to us is: Freeing Our Families from Perfectionism by Thomas S. Greenspon (Paperback - December 2001).
My daughter's exhibition of boredom was placing her head on the desk and being tired. This made her appear less negative but it was difficult to deal with. She simply shuts down. She is most definitely gifted.
The perfectionism came up elsewhere. I was really shocked when the book was reccommended to me because I do not see myself as a perfectionist; why family? It does a good job of explaining some thought processes and I certainly found myself nodding my head and learning some copint/parenting stragegies.
