title: Add a default view on a navigation view controller
body: <p>I have a navigation controller and a tab bar where I have buttons for multiple options. When a button is ever pressed it pushes its respective viewcontroller in navigation controller. That's fine, but when I again press the button in tab bar after loading any other suboption viewcontroller in navigation controller, it shows blank screen instead of that "options screen" which it shows when I touch it first time.</p>
  
  <p>I am using this code:</p>
  
  <pre><code>[self.navigationController pushViewController:accountOptions animated:NO];
  </code></pre>