title: Telerik Loading Panel background images not showing in IE8
body: <p>I have a website using Telerik controls for ASP.NET.  When an AJAX request starts, the Loading Panel (defined in the master page) will display, with a loading image, text, and faded white background color. It works totally fine in Firefox and Chrome, but the background image and text don't display in IE8.  All that displays is the white background.</p>
  
  <p>LoadingPanel code:</p>
  
  <pre><code>&lt;tel:RadAjaxLoadingPanel ID="HBApplicationWideLoadingPanel" runat="server"  ClientIDMode="Static" 
          AnimationDuration="400" InitialDelayTime="0" CssClass="LoadingPanel" IsSticky="true" &gt;
      &lt;div id="HBApplicationWideLoadingPanelLabel" class="LoadingPanelLabel"&gt;Loading&lt;/div&gt;
  &lt;/tel:RadAjaxLoadingPanel&gt;
  </code></pre>
  
  <p>Any ideas why IE8 isn't displaying the images? I've inspected the page source, and they're there in the CSS.</p>