title: Flex 3 & XML Namespace
body: <p>I'm using Flex 3. I updated from Flash 9 to Flash 10 and from SDK 3.2 to 3.6. </p>
  
  <p>I noticed that when I add an XML tag, it now asks for a namespace. In my previous set-up it didn't ask for this. What do I put as the namespace? I though that it was part of the Flex core. </p>
  
  <pre><code>&lt;mx:XML xmlns=""&gt;
  </code></pre>
  
  <p>I'm having problems with Flex forcing me to escape characters for XML data. Is this problem related to the missing namespace?</p>