title: Flex Mobile textInput in scroller text lag
body: <p>I have been seeing a weird lag in the text that is input into a textInput container in my flex mobile app.  The issue occurs when I type in some text into a textInput then scroll in any direction.  The entire screen and all objects seem to move, except for the text in the textInput.  </p>
  
  <p>This becomes a really big issue when I select the textInput to begin typing and the softkeyboard appears and shifts the input which then places the cursor and the typed text somewhere else on the screen.  It looks pretty bad.  </p>
  
  <p>Is this a general performance issue?  Any suggestions on how to fix? </p>
  
  <p>code is basic: </p>
  
  <pre><code> &lt;s:Scroller x="0" y="0" width="100%" height="100%" verticalScrollPolicy="on" &gt;
        &lt;s:Group&gt; 
           &lt;s:TextArea softKeyboardType="number" id="ti1" y="145" width="390" height="75"                      fontSize="36" fontWeight="bold" horizontalCenter="0" text=" "/&gt;
        &lt;/s:Group&gt;
      &lt;/s:Scroller&gt;
  </code></pre>