I am using a very simple example I got from your website that loads the radwindow on pageload using the VisibleOnPageLoad property. It works in firefox and ie8 but not in ie9. I tried turning off the "pop-up blocker" but still no luck. Also I am using the 2009.02.0701.35 version of your library. Any help would be appreciated.
<telerik:RadScriptManager ID="ScriptManager" runat="server" /> <telerik:RadWindow ID="RadWindow1" runat="server" Width="350" Height="350" Behaviors="Default" VisibleOnPageLoad="true" NavigateUrl="http://www.google.com" />