title: why does my usercontrol keep resetting it's visible property to false?
body: <p>Ok, I have a usercontrol on my page.</p>
  
  <p>On the page, the visible property is set to false.</p>
  
  <p>On the OnPreRender event, I set the visible property to true.</p>
  
  <p>It runs the line of code, but does not actually change anything. (so visible remains at false)</p>
  
  <p>This exact same method works across every other control, and there is nothing special about this control.</p>
  
  <p>Any ideas??</p>