title: Trying to draw textured cube primitive in XNA with quads
body: <p>Right now I'm using XNA 4.0 with Windows Phone Developer Tools to create a textured cube using a predefined quad class on MSDN.</p>
  
  <p>The front/back/left/right faces of the cube will draw fine (for every cube that I make), however the top and bottom faces won't render. The rasterizer state's cull mode is set to none and the quad that represents the top face exists, and it seems as if it would draw, but for some reason it won't.</p>
  
  <p>Is there a problem with my code, or is this not happening for some other reason?</p>
  
  <p>Here's the code:</p>
  
  <ul>
  <li>Game1.cs: <a href="http://pastebin.com/RHU7jNXA" rel="nofollow">http://pastebin.com/RHU7jNXA</a></li>
  <li>Quad.cs &amp; Cube.cs: <a href="http://pastebin.com/P9gz5q4C" rel="nofollow">http://pastebin.com/P9gz5q4C</a></li>
  </ul>