I have a pretty simple (at least I thought) WebDialogWindow that is causing problems.  When the link button in the WebDialogWindow is clicked, a long time passes, then IE displays a message saying that a script is taking too long.  I know how to disable this message in IE, but that's not my problem.  If I take the dialog out of the UpdatePanel, everything works just fine.

{.aspx page}

<%@ Page Language="vb" AutoEventWireup="false" MasterPageFile="~/MasterPage.master" CodeBehind="test.aspx.vb" Inherits="ErgoWeb.test1"
    title="Untitled Page" %>

<%@ Register Assembly="Infragistics2.Web.v8.1, Version=8.1.20081.1000, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"
    Namespace="Infragistics.Web.UI.LayoutControls" TagPrefix="ig" %>

<%@ MasterType VirtualPath="~/MasterPage.master" %>

<asp:Content ID="Content1" ContentPlaceHolderID="middle" Runat="Server">
    <asp:ScriptManager
        ID="ScriptManager1"
        runat="server" />
   
        <asp:UpdatePanel
            ID="test"
            runat="server"
            UpdateMode="conditional">
            <ContentTemplate>
                <asp:ImageButton
                    Text="Show Modal"
                    runat="server"
                    ID="showBtn"
                    OnClick="openModal"
                    ImageUrl="~/img/delete_icon.gif" />
                <ig:WebDialogWindow
                    ID="pgm" runat="server" Height="500px" Width="450px"
                    WindowState="Hidden"
                    Modal="true" ModalBackgroundCssClass="modalBackground">
                    <ContentPane CssClass="PriorityGrid">
                        <Template>
                         <asp:LinkButton
                             ID="lb0110"
                             CssClass="PriorityEasyHigh"
                             style="top:0px; left:360px;"
                             runat="server"
                             CommandArgument="110"
                             OnClick="setVal" />
                        </Template>
                    </ContentPane>
                </ig:WebDialogWindow>
            </ContentTemplate>
        </asp:UpdatePanel>
              
</asp:Content>

{.aspx.vb page}

    Public Sub OpenModal(ByVal sender As Object, ByVal e As ImageClickEventArgs)
        pgm.WindowState = DialogWindowState.Normal
        test.Update()
    End Sub

    Public Sub setVal(ByVal sender As Object, ByVal e As System.EventArgs)

        pgm.WindowState = DialogWindowState.Hidden
        test.Update()

    End Sub

 Any ideas?