Bug 174179 [Forms] FormToolkit should use SWT.BORDER style in Vista
We should not paint our own borders in Vista but the method for initializing border style in FormToolkit only checks for Windows XP. We should expand this check to include Vista.
bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/widgets/FormToolkit.java
*            the tree parent
	 * @param style
	 *            the tree style
	 * @return the tree widget
	 */
	public Tree createTree(Composite parent, int style) {
		Tree tree = new Tree(parent, borderStyle | style | orientation);
		adapt(tree, false, false);
		
		return tree;
	}
	/**
	 * Creates a scrolled form widget in the provided parent. If you do not
	 * require scrolling because there is already a scrolled composite up the
	 * parent chain, use 'createForm' instead.
	 * 
	 * @param parent
	 *            the scrolled form parent
	 * @return the form that can scroll itself
	 * @see #createForm
	 */
	public ScrolledForm createScrolledForm(Composite parent) {
		ScrolledForm form = new ScrolledForm(parent, SWT.V_SCROLL
				| SWT.H_SCROLL | orientation);
		form.setExpandHorizontal(true);
		form.setExpandVertical(true);
		form.setBackground(colors.getBackground());
		form.setForeground(colors.getColor(IFormColors.TITLE));
		form.setFont(JFaceResources.getHeaderFont());
		return form;