IFRAME hidden in a page (IE only)???

[carhtur]

Hi,
I have 8 RadDockableObject in a RadDockingZone in a same page. The  RadDockingZone are causing errors on my layout. They are creating a IFRAME with these atributes:
display: inline;
frameborder:0;
left:-10000px;
overflow:hidden;
position:absolute;
scrolling:no;
src:javascript:'';
top:-10000px;

These 8 IFRAMES are only displayed on Internet Explorer (I had tested on v6.0 and v7.0) but don't appear on Mozilla Firefox.
What I'll have to do to don't appear these IFRAMES?
My code of the RadDockableObject is:

<cc1:RadDockableObject ID="rdoEnquete" runat="server" Text="&nbsp;"  BorderStyle="None" Width="150px" DockingMode="Disabled" Behavior="None" BorderWidth="0px" >
    <ContentTemplate>
        <table class="texto" cellspacing="0" cellpadding="2" width="100%" align="center" border="0">
            <tr>
                <td align="center">
                    <uc17:UCEnquetes ID="UCEnquetes1" runat="server" />
                </td>
            </tr>
        </table>                                            
    </ContentTemplate>
    <Commands>
        <cc1:RadDockableObjectCommand Enabled="False" Name="Expand" ToolTip="Mostrar" />
        <cc1:RadDockableObjectCommand Name="Collapse" ToolTip="Esconder" Enabled="False" />
        </Commands>                        
</cc1:RadDockableObject>                                    

And my code of RadDockingZone is:

<cc1:RadDockingZone ID="rdzEsquerdaPrincipal" runat="server" BackColor="Transparent" BorderColor="Transparent" Width="150px" MinimumHeight="0px" MinimumWidth="1px" BorderStyle="None" BorderWidth="0px" Height="0px">

[Obi-Wan Kenobi]

These IFrames are created to add overlay functionality to RadDock under IE6, e.g. when you drag RadDock over the dropdown.

[carhtur]

Ok, thanks to you reply, but... there are a way to remove these IFRAMES? They're causing a layout broken in my website.

[Obi-Wan Kenobi]

You can use RadDock for ASP.NET AJAX(Prometheus). It is without iframes.