title: Disappearing buttons in BlackBerry HorizontalFieldManager
body: <p>I ma new to BB development. I have a field manager defined and set like:</p>
  
  <pre><code>horizontalField= new HorizontalFieldManager(Manager.USE_ALL_WIDTH);
  setStatus(horizontalField); 
  </code></pre>
  
  <p>I have a button and a checkbox         </p>
  
  <pre><code>CheckboxField chkBuffer=new CheckboxField("Buffer" ,true);
  
  ButtonField sendButton=new ButtonField("Send")
  </code></pre>
  
  <p>When I try to add these to the horizontal FM, only check box appears and the button is not visible for some reason. I add them like</p>
  
  <pre><code> horizontalField.add(chkBuffer);
  
   horizontalField.add(sendButton);
  </code></pre>
  
  <p>Any ideas about what can be going wrong ?</p>