title: Telerik Controls - Background Image not showing in IE8
body: <p>I have a web Application having some telerik controls.</p>
  
  <p>i have following telerik Control :</p>
  
  <pre><code>telerik:RadWindowManager ID="RadWindowManager1" runat="server" Behavior="Close" VisibleStatusbar="false" VisibleTitlebar="true"
          InitialBehavior="None" ShowContentDuringLoad="false"  Modal="True" Overlay="True"  
          Behaviors="None" Height="640px" Width="900px" Skin="Telerik" EnableShadow="true" OnClientResizeEnd="SetWindowBehavior" &gt;
          &lt;Windows&gt;
              &lt;telerik:RadWindow ID="RadWindowTreeview" Title="Careplan Tree" runat="server" Modal="true"
                  OnClientClose="OnClientClose" Behaviors="Close" BackColor="Transparent" DestroyOnClose="false"
                  NavigateUrl="MainTreeContainer.aspx" BorderStyle="None" Visible="True" VisibleStatusbar="False"
                  VisibleTitlebar="False" Width="900px" Height="640px" Animation="Fade" AutoSize="False"
                  AnimationDuration="1000" Opacity="100"&gt;  &lt;/telerik:RadWindow&gt;
              &lt;telerik:RadWindow ID="RadWindow1" CssClass="defaultWindow" Width="900px" Height="640px" AutoSize="False" 
                  runat="server" Modal="true" Behaviors="None" Overlay="true" NavigateUrl="~/Terms.aspx"  OnClientClose="OnClientClose1" &gt;
              &lt;/telerik:RadWindow&gt;
  
               &lt;telerik:RadWindow ID="RadWindow3"  CssClass="defaultWindow" MinWidth="900px" MinHeight="640px" AutoSize="False" 
                  runat="server" Modal="true" Behaviors="None" Overlay="true" NavigateUrl="~/Privacy.aspx"  OnClientClose="OnClientClose3" &gt;
              &lt;/telerik:RadWindow&gt;
  
          &lt;/Windows&gt;
      &lt;/telerik:RadWindowManager&gt;
  </code></pre>
  
  <p>i am opening an aspx form in <code>RadWindowTreeview</code> Radwindow .. i have overridden some telerik CSS  like following:</p>
  
  <pre><code>.rwWindowContent, .rwExternalContent
          {
              border-style: groove !important;
              border-width: 1px;
              border-radius: 10px;
              background-image: url('background.jpg') !important;
              border-color: GhostWhite;
          }
  </code></pre>
  
  <p>but the background image doesn't display in IE8 only.. it displays well in Mozila, chrome,safari and IE9.. but not display only in IE8..</p>
  
  <p>any suggestions ?
  thanks...</p>