title: presentModalViewController gives a black screen
body: <p>In an alert view method I implemented the following (pretty standard) piece of code for popping a modal view:</p>
  
  <pre><code>    else if (buttonIndex == 1) {
          EmergencyPlanViewController *emergencyPlanView = [[[EmergencyPlanViewController alloc] init] autorelease];
          [emergencyPlanView setModalTransitionStyle:UIModalTransitionStyleFlipHorizontal];
          [self presentModalViewController:emergencyPlanView animated:YES];
      }
  </code></pre>
  
  <p>Somehow it gives me a black screen as result. I can't find what is wrong here.
  I created the window in my MainStoryBoard and customized the class of the viewcontroller in IB   to EmergencyPlanViewController.</p>
  
  <p>The viewDidLoad method of the emergencyPlanView is triggered but it looks like the view is not loaded. Anyone an idea what's wrong here?</p>
  
  <p><strong>EDIT:</strong>
  To be clear, I am not using seperate xib-files in my project. I only use the storyboard</p>