title: texture address mode artifact on environment cube map in WP7
body: <p>I am having some problems getting rid of an artifact in my WP7 XNA application. After figuring out how to create and load a TextureCube and render objects using the EnvironmentMapEffect, I noticed an artifact in the reflection rendered on the object. It looks like the cube texture I'm employing is using a wrap texture address mode instead of clamp texture address mode.</p>
  
  <p>The weird thing is that the problem only appears on the device (LG Optimus 7), the emulator doesn't have this issue.</p>
  
  <p>Does anyone know if this is a bug, or am I doing something wrong?</p>
  
  <p>I am attaching a 'camera-shot' of the issue on my device.
  &lt;&lt; <a href="http://i.stack.imgur.com/502MU.jpg" rel="nofollow">reflection artifact</a> >></p>