We had that problem and it turned out that because we were using a SWF as the source and referencing a symbol in the SWF as an icon, then clicking on that icon seemed to intercept and bury the click event. This is what we had.
Don't know how it's really done for Tree component.
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.