title: Back button not rendering
body: <p>I have an overlay that I want to slide in my cocoa-touch application. I have created the view controller for it and the corresponding nib. The nib just has a View with a text field in it.</p>
  
  <p>I move to the view using:</p>
  
  <pre><code>[[self navigationController] pushViewController:[[[AddPlayerViewController alloc] initWithNibName:@"AddPlayerViewController" bundle:nil] autorelease] animated: YES];
  </code></pre>
  
  <p>This works fine and the view slides in. However, the back/cancel button doesn't render. I can click there and it goes back, but nothing is drawn.</p>