Problem with flat pattern update

I am using Solidworks 2011 and like to use "pack and go" when I need to make some new drawings and models for a similiar assembly and parts.  The problem that I am running into is that the flat view on my drawings are not updating to reflect the changes I make to the model.  The formed views are updating correctly, though.  What is even more weird is that I can open the part file and flatten it and it shows the right flat pattern. Whenever I use "pack and go", I make sure to check all models and drawings that will be modified.  Does anybody know why this is happening?  Please help, before I go crazy.  Everything updates correctly except the drawing flat patterns. 

Thanks for your time.

SolidworksSheet Metal