http://world.episerver.com/Get-Started/EPiServer-CMS/Getting-Started---How-To/Create-a-Sub-Menu-with-EPiServerPageTree/

TopMenu - Level 1
SubMenu - Level 2
LeftMenu - Level 3

I've created a submenu using the article above. It's working fine. But my "leftmenu" shows the tree from my Level2, not Level3 that I want.
My guess is I'm trying to set the leftmenu to early, so it gets the values from the TopMenu not the submenus own values.

Any ideas on how I can solve this?
/Markus

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In my master. pages OnLoad I assing the values for the TopMenu to the SubMenu. And SubMenu to the LeftMenu. 
protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            if (SubMenu != null && TopMenu != null)
            {
                SubMenu.subml = TopMenu.MenuListControl;
            }

            if (LeftMenu != null && TopMenu != null)
            {
                         LeftMenu.MenuList = SubMenu.subml;
            }
        }

And in my leftmenu I set the pagelink to the OpenTopPage.

protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            if (_menuList != null)
            {
                PageTreeControl.PageLink = MenuList.OpenTopPage;
                PageTreeControl.DataBind();
            }
          
        }