Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; WOW64; Trident/4.0; SLCC1; .NET CLR 2.0.50727; InfoPath.2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET4.0C; .NET4.0E)
Timestamp: Tue, 19 Oct 2010 18:15:24 UTC


Message: Invalid argument.
Line: 6
Char: 11317
Code: 0
URI: https://ngwvc2-tagweb00/URO/eo_web.ashx?id=cf56ce34-bc89-4317-af9f-dd34e4ea27a9

The pages were working fine 2 days ago, but all of a sudden my IE users are getting this error. No problems with Chrome and Mozilla. There is a callback panel that uses a dialog control to show when loading, when an IE user clicks the button to load the page they are presented with the loading dialog and in hangs there without loading the contents. I hadn't made any changes to the website. The whole site is .net 4.0 using the newest version of EO. here is the page code as well.



<div class="feature">

<div style="width: 175em">
<uc1:UnitTree ID="UnitTree1" runat="server" />
<eo:CallbackPanel ID="CallbackPanel1" runat="server" Triggers="{ControlID:btnLoadChecked;Parameter:},{ControlID:GridView1;Parameter:}"
Width="85em" Style="float: left;" LoadingDialogID="dlgLoading">
<span class="headingtext" style="margin-top: 10px; padding-top: 10px">
<asp:SqlDataSource ID="ds_br_Tier1" runat="server" ConnectionString="<%$ ConnectionStrings:urodataConnectionString %>"
SelectCommand="sp_Vacancy_Get_Vac_xmlinput" SelectCommandType="StoredProcedure">
<SelectParameters>
<asp:SessionParameter DefaultValue="000" Name="upclist" SessionField="searcher" />
</SelectParameters>
</asp:SqlDataSource>
&nbsp;&nbsp;
<asp:Button ID="btnLoadChecked" runat="server" CausesValidation="False" Text="View Checked Units" />
&nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<asp:Button ID="lnkExport" runat="server" Text="Export to Excel" />
&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;<br />
&nbsp;<asp:Label ID="StatusLabel" runat="server" Font-Bold="True" ForeColor="Red"
Text="Label" Visible="False"></asp:Label>
<br />
</span>
<div style="font-size: 1.2em; width: 100%">
Vacancies:
<asp:Label ID="lblctvaca" runat="server" Text="0"></asp:Label></div>
<br />
<asp:GridView ID="GridView1" runat="server" AllowSorting="True" CellPadding="4" DataSourceID="ds_br_Tier1"
ForeColor="#333333" GridLines="None">
<RowStyle BackColor="#E3EAEB" />
<FooterStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#666666" ForeColor="White" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#C5BBAF" Font-Bold="True" ForeColor="#333333" />
<HeaderStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
<EditRowStyle BackColor="#7C6F57" />
<AlternatingRowStyle BackColor="White" />
</asp:GridView>
</eo:CallbackPanel>
&nbsp;<br />
&nbsp;<eo:Dialog ID="dlgLoading" runat="server" BackColor="#47729F" BackShadeColor="Black"
BackShadeOpacity="50" ControlSkinID="None" FooterHtml="" HeaderHtml="Loading..."
Height="60px" HorizontalAlign="Center" VerticalAlign="Middle" Width="100px">
<HeaderStyleActive CssText="border-right: #22456a 1px solid; padding-right: 4px; border-top: #ffbf00 3px solid; padding-left: 4px; font-weight: bold; font-size: 11px; padding-bottom: 2px; color: white; padding-top: 2px; border-bottom: #22456a 1px solid; font-family: verdana" />
<FooterStyleActive CssText="border-right: #22456a 1px solid; padding-right: 4px; border-top: #7d97b6 1px solid; padding-left: 4px; border-left-width: 1px; font-size: 11px; border-left-color: #728eb8; padding-bottom: 4px; color: white; padding-top: 4px; border-bottom: #22456a 1px solid; font-family: verdana" />
<ContentTemplate>
<img src="../images/ajax-loader.gif" />
</ContentTemplate>
<ContentStyleActive CssText="border-right: #22456a 1px solid; padding-right: 4px; border-top: #7d97b6 1px solid; padding-left: 4px; border-left-width: 1px; font-size: 11px; border-left-color: #728eb8; padding-bottom: 4px; color: white; padding-top: 4px; border-bottom: #22456a 1px solid; font-family: verdana" />
</eo:Dialog>
</div>
</div>


Thanks,
Dustin