title: IOS IPhone label moving when screen scrolled
body: <p>I appreciate that this is probably something people will need code samples to properly answer but unfortunately I don't have them to hand at the moment so I'm asking for peoples experiences and whether they've seen anything like this before.</p>
  
  <p>I have a <code>view</code> with a UITableView in it, there are a bunch of cells and on this particular view if I scroll the screen down then the label that's in the last cell superimposes itself on top of the label in the first cell.</p>
  
  <p>It only happens on this one view where the first and last cells appear or don't appear in the <code>UITableView</code> depending on whether certain values are in a JSON feed.</p>
  
  <p>If both cells are in the <code>UITableView</code> then when you scroll,  the label of the bottom one appears on top of the top one. The bottom cell's label is still in place, as is the top one - just with the bottom one on top of it!</p>
  
  <p>So, has anyone seen anything like this and if so is there's an obvious thing I'm doing wrong that this type of occurrence is a symptom of?</p>