Hi, I've tried adjusting the z-index on the radwindow and the radtab to allow the radwindow to display on top but doesn't appear to be working (please see attached). A problem may be that the radtab exists on a different aspx page and there is a div below the tabs (again see attached) that is used to display other pages. I'm creating the radwindow in a page being displayed in the div. In addition, the radwindow modal=true. Please advise. Thanks.