How to change the style of the content pane header?
Is there any way to change the size of it with restyling it.
I'm not exactly sure what you are trying to do but basically there are several ways of dictating the size of the PaneHeaderPresenter (or any element really). One is to retemplate the containing element (the ContentPane in this case) and use the WPF layout mechanisms to control the size (e.g. set the Width of the PaneHeaderPresenter within the CP's template). Another is to provide a style for the element (the PaneHeaderPresenter in this case) that sets the Height/Width/MinWidth/etc in setters for the PaneHeaderPresenter.
Actually, i am getting a problem specificaly on some Vista machines.
The problem is that text in header is getting clipped for a selected content pane.