title: simple web parts in asp.net show as blank page
body: <p>I am trying to develop web parts in <em>VS 2008/WinXP</em></p>
  
  <p>I created a Web Site project, and added a couple of web parts within the default form in <code>default.aspx</code></p>
  
  <pre><code>&lt;form id="form1" runat="server"&gt;
  &lt;div&gt;
      &lt;asp:WebPartManager ID="WebPartManager1" runat="server"&gt;
      &lt;/asp:WebPartManager&gt;    
      &lt;asp:WebPartZone ID="WebPartZone1" runat="server"&gt;
      &lt;/asp:WebPartZone&gt;    
  &lt;/div&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>When I first ran it (in the debugger), a popup told to me enable Windows authentication in IIS (so something is working!). I enabled the Windows authentication, and now when I run it I get a blank screen. Same result if I open it in IE via the url (rather than debugger).</p>
  
  <p>Note - the source view shows lots of a javascript - in particular, it declares a <em>WebPartManager object</em>, and adds a zone to it (<code>__wpm.AddZone(..)</code>)</p>