RadMultiPage design problem with sitefinity

Hi!

I am using the telerik control radmultipage and all goes well.
When I included the web control to sitefinity the control RadMultiPage do not show well.
It must be a css problem. 

code:

<telerik:RadTabStrip ID="RadTabStrip1" runat="server" Skin="Windows7" MultiPageID="RMP" Width="827px" SelectedIndex="0">
        <Tabs>
            <telerik:RadTab Text="Acumulado" Width="270px" Selected="True">
            </telerik:RadTab>
            <telerik:RadTab Text="Detalle asiento" Width="270px">
            </telerik:RadTab>
            <telerik:RadTab Text="Movimientos periodo" Width="270px">
            </telerik:RadTab>
        </Tabs>
    </telerik:RadTabStrip>


    <telerik:RadMultiPage ID="RMP" runat="server" SelectedIndex="0" Width="827px"   SkinID="Windows7" BorderStyle='None'>
        <telerik:RadPageView Width="827px" ID="RadPageView1" runat="server">
          [...]
        </telerik:RadPageView>
        <telerik:RadPageView Width="827px" ID="RadPageView2" runat="server">
                     [...]
 
        </telerik:RadPageView>
        <telerik:RadPageView Width="827px" ID="RadPageView3" runat="server">
                     [...]

        </telerik:RadPageView>
    </telerik:RadMultiPage>

Capture of the problem included - image1
capture of what is shown in the Visual Studio - image2

Thanks!

I believe you need to add the Page ID in the RadTab definition.

Cheers