title: c# problem with form / tabcontrol redraw on maximize
body: <p>I have an app / form with a tabcontrol on it.
  When I maximize my app, I see a redraw-bug - empty parts of the right area on the tabpage arent drawn correctly and show other weird stuff.
  (It's just the background, the controls on the tabpage are okay)</p>
  
  <p>I assume it must be a simple setting somewhere, but I can;t figure out what it is.
  Any hints would be appreciated ! :)</p>
  
  <p>Edit:
  Screenshot of the problem here :
  <a href="http://i48.tinypic.com/dm318p.png" rel="nofollow noreferrer">http://i48.tinypic.com/dm318p.png</a>
  Focus on the top right :)</p>