Hi, Our reports work fine with report viewer 8.0 (SSRS 2008) . When we upgrade it to Report Viewer 9.0 reports are broken. On clicking View Report after filling the parameters , NO data shows up . AsyncRendering is set to True since we don't want to block the page. I see that the little tool bar appears but things like Print/Export seems to do nothing when clicked. Any help greatly appreciated. Thank You