If there is multiple modalpopupextender on a page, any of them is launched first time is fine, however other modalpopup s do not show over the page. z-index is set to negative numbers and modalpopup does not show up
Comments: Merged with [27101](https://ajaxcontroltoolkit.codeplex.com/workitem/27101)
Comments: Merged with [27101](https://ajaxcontroltoolkit.codeplex.com/workitem/27101)