I have created a very simple page with a button and the ajax compnents.  When I click the button, the update panel doesn't display in firefox but it does in IE.  I took this from one of the examples.  Is there something unique to Firefox?  The example works on the demo page, but when I remove the content code and place it on my page, it doesn't.
Thanks
 
 
 
 
 
 
 
                                Thanks
<%@ Page Language="VB" %><%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server">    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs)        'simulate longer page load        System.Threading.Thread.Sleep(2000)    End Sub    Protected Sub CheckBox1_CheckedChanged(ByVal sender As Object, ByVal e As EventArgs)        RadAjaxLoadingPanel1.EnableSkinTransparency = (TryCast(sender, CheckBox)).Checked    End Sub    Protected Sub DropDownList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs)        Dim position As New AjaxLoadingPanelBackgroundPosition()        If DropDownList1.SelectedValue = "Bottom" Then            position = AjaxLoadingPanelBackgroundPosition.Bottom        End If        If DropDownList1.SelectedValue = "BottomLeft" Then            position = AjaxLoadingPanelBackgroundPosition.BottomLeft        End If        If DropDownList1.SelectedValue = "BottomRight" Then            position = AjaxLoadingPanelBackgroundPosition.BottomRight        End If        If DropDownList1.SelectedValue = "Center" Then            position = AjaxLoadingPanelBackgroundPosition.Center        End If        If DropDownList1.SelectedValue = "Left" Then            position = AjaxLoadingPanelBackgroundPosition.Left        End If        If DropDownList1.SelectedValue = "None" Then            position = AjaxLoadingPanelBackgroundPosition.None        End If        If DropDownList1.SelectedValue = "Right" Then            position = AjaxLoadingPanelBackgroundPosition.Right        End If        If DropDownList1.SelectedValue = "Top" Then            position = AjaxLoadingPanelBackgroundPosition.Top        End If        If DropDownList1.SelectedValue = "TopLeft" Then            position = AjaxLoadingPanelBackgroundPosition.TopLeft        End If        If DropDownList1.SelectedValue = "TopRight" Then            position = AjaxLoadingPanelBackgroundPosition.TopRight        End If        RadAjaxLoadingPanel1.BackgroundPosition = position    End Sub</script><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server">    <title></title>    <style type="text/css">        .style1        {            width: 212px;            height: 65px;        }    </style></head><body>    <form id="form1" runat="server">        <telerik:RadScriptManager ID="ScriptManager1" runat="server" />    <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">        <AjaxSettings>            <telerik:AjaxSetting AjaxControlID="CheckBox1">            </telerik:AjaxSetting>            <telerik:AjaxSetting AjaxControlID="DropDownList1">            </telerik:AjaxSetting>            <telerik:AjaxSetting AjaxControlID="Panel1">                <UpdatedControls>                    <telerik:AjaxUpdatedControl ControlID="Panel1"                        LoadingPanelID="RadAjaxLoadingPanel1" />                </UpdatedControls>            </telerik:AjaxSetting>        </AjaxSettings>    </telerik:RadAjaxManager>    <div class="bigModule">        <div class="bigModuleBottom">            <p>                <b>RadAjaxLoadingPanel</b> supports skinning and you can change its skin by setting                the <b>Skin</b> property to the name of the respective skin. A <b>BackgroundPosition</b>                property enables you to position the loading image in the loading panel. The <b>EnableSkinTransparency</b>                property allows you to enable/disable default skin transparency.</p>            <p>                Please note that the loading images that are currently embedded in the Telerik.Web.UI                assembly will not be available after Q1 2009.            </p>            <br />        </div>    </div>        <table>            <tr>                <td style="width: 200px"><asp:CheckBox ID="CheckBox1" runat="server" Text="EnableSkinTransparency" Checked="true"AutoPostBack="true" OnCheckedChanged="CheckBox1_CheckedChanged" /><br />                    <br />                </td>                <td>                    Change Background Position:<br />                    <asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="true" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">                        <asp:ListItem>Bottom</asp:ListItem>                        <asp:ListItem>BottomLeft</asp:ListItem>                        <asp:ListItem>BottomRight</asp:ListItem>                        <asp:ListItem Selected="True">Center</asp:ListItem>                        <asp:ListItem>Left</asp:ListItem>                        <asp:ListItem>None</asp:ListItem>                        <asp:ListItem>Right</asp:ListItem>                        <asp:ListItem>Top</asp:ListItem>                        <asp:ListItem>TopLeft</asp:ListItem>                        <asp:ListItem>TopRight</asp:ListItem>                    </asp:DropDownList>                </td>            </tr>        </table>    <fieldset class="module1">        <asp:Panel ID="Panel1" runat="server" HorizontalAlign="Center" Height="275px"><asp:Button ID="Button1" runat="server" Text="Click to see the loading image" OnClick="Button1_Click"Style="margin-top: 15px; margin-left: 15px" CssClass="qsfButtonBigger" />        </asp:Panel>    </fieldset>    <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server">adfadsfadsfasdfadsfadfas    </telerik:RadAjaxLoadingPanel>    </form></body></html>
