title: CSS3 IE9 background-size: cover; doesn't always work
body: <p>This is killing me, i have a background picture that is doing full screen using background-size: cover;.  And to my understand IE9 supports this.  Whats killing me is some IE9 browsers are handling this and some IE9 browsers are not.</p>
  
  <p>Anybody experience this before?</p>