Windows Phone 7 how do I remove “stuttering” when switching between pivot items?

There is nothing particularly wrong with the code you posted per se. Most likely what is happening is your background worker thread is completing while you are switching between pivot items, which is in turn updating the observable collections to which your lists are bound. Also your lists contain images which, if you are binding to a URL on the web which requires the image to be downloaded, will also cause perf problems.

One common situation that happens is that although you load data completely on a separate thread, after load is completed there are lot's of UI work for binding items to the ListBox.

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.