title: Dropbox linkFromController presenting page "cancel" button color changed in first time
body: <p>Dropbox linkFromController presenting page <strong>"cancel"</strong> button color changed in first time.Second time application is opened, it is coming in the normal way.In my tableview did select method,called the dropbox session method to linking the application with the dropbox, </p>
  
  <pre><code>if (![[DBSession sharedSession] isLinked])
          {
              [[DBSession sharedSession] linkFromController:self];
          }
  </code></pre>
  
  <p>This is in first time and
  <img src="https://i.stack.imgur.com/OHVf2.png" alt="enter image description here"></p>
  
  <p>this is in second time,
  <img src="https://i.stack.imgur.com/pgzWf.png" alt="enter image description here"></p>
  
  <p>Please give me a solution for fixing this problem.</p>