As SnOrfus says, apparently it may create some conflict when you start doing some hard coding although it is uncommon thing what happen to you as I can work on the design view creating tab control, tab items and manipulating trough the design view.
I ran into an issue recently that sounds like this, basically the designer isn't recognizing that you've selected something other than the first tab. If you go to the properties dialog for that tabitem control and set the IsSelected property to True it should display that tabs content area.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.