title: cellForRowAtIndexPath not called and numberOfSections and numberOfRows are bigger than zero
body: <p>I have a strange problem that ocurrs with simulator of iPhone 4 but not with simulator of iPhone 5...</p>
  
  <p>The situation is: I have a screen composed by one VC that contains a TableViewController. In the class of VC I declared the delegates classes of UITableView (UITableViewDelegate, UITableViewDataSource). Also, I have pointed the delegate and the dataSource to File's Owner.</p>
  
  <p>With this situation, I run the app at iPhone 5 Simulator and all works perfectly, but it I run the app at iPhone 4 Simulator, the TableView is not shown. This ocurrs with all test that I have done.</p>
  
  <p>I hardcoded the return value of methods numberOfSectionsInTableView, numberOfRowsInSection for return always a number: "return 1" and "return 2", respectively. When I run it, step by step, I can see that values returned for these methods are ok, but when I force to call:</p>
  
  <p>[tableview reloadData]</p>
  
  <p>never call to cellForRowAtIndexPath... </p>
  
  <p>Any idea??</p>
  
  <p>Thanks!</p>