title: UIFont crash problem
body: <p>When i use this line</p>
  
  <pre><code>  [UIFont fontWithName:@"Arial" size:16]  its work fine,but
  
     [UIFont fontWithName:@"Arial Black" size:16]  it crashes my app.....
  </code></pre>
  
  <p>In xib design there is the font name of Arial Black is available.But when i set using [UIFont fontWithName:@"Arial Black" size:16] this it crashes my app.. How can i set this font name to uilabel... </p>
  
  <p>Can any one help me?</p>