I have a button and a literal on my page (among other things but *I think*
this functionality is pretty much isolated).

1. In Page_Init I set literal.Text = "PAGEINIT"

2. In the button's click method I set literal.Text = "BUTTONCLICKED"

3. In Page_PreRender I verify that literal.Text == "BUTTONCLICKED" after
clicking the button.

4. As soon as I step out of Page_PreRender the page is rendered with
literal.Text == "PAGEINIT"

If I specifically set literal.Text = "MANUALLYSET" in Page_PreRender, then
literal.Text == "MANUALLYSET" when the page renders.  I'm stumped.  Why is
the Text set in the button's click method carried through to Page_PreRender
but then not rendered in the browser?  Why does manually setting the value in
Page_PreRender work when the value that is in literal.Text at the time of
Page_PreRender is ignored?

Any help is greatly appreciated as I'm about to lose it...