Is it possible to use a Panel control instead of navigating to a frame? I have a website that uses a header frame and then a vertical frame under it (not unlike the MSDN library). I am curious to know if I could achieve the same navigational functionality by using a panel in place of the right frame, so that when a link is clicked in the treeview, the page comes up in the panel. Does anyone know if this is possible or if there is another way to accomplish this without using frames? Thank you in advance...