I have a modalpopup that was working fine before I added two viewpanels inside a multiview. I have placed one of the viewpanels around the modalpopup and the related popup panel. I populate the contents of the popup panel in code behind. This still works but the popup panel no longer pops up in the center of the page but is visible when the viewpanel is shown. It get's populated but remains in the same position at the bottom of the page and is not modal but allows buttons outside of the popup panel to be clicked and activated.
Is there something about using a multiview that I need to know about when using the modalpopup extender?