HeaderText changed during PreRender does not render

[Joe Rattz]

I am trying to programatically change my HeaderText. I
can change the foreground and background colors and
everything render fine. But, if I change the HeaderText
in PreRender, the header will not actually render with the
text I set it to. Oddly, on the next postback, the
subsequent render will reflect the HeaderText change I set
from the previous postback.

Does anyone know what is going on here?

Thanks.