title: Quick launch menu missing
body: <p>I have created a team site in a site collection.<br>
  I have modified the default page of the team site to use the "Blank Web Part Page" layout.<br>
  I am an administrator of the site collection and I can see the quick launch menu on the default page of the team site.  </p>
  
  <p>I have granted a user "Full Control" permission on the team site.<br>
  The user can not see the quick launch menu on the default page of the team site.<br>
  I want to know why and how I can fix this issue.<br>
  I have googled for a while but without success. 
  I hope a StackOverflow user will help me.</p>