title: Custom Listview does not display ImageView properly
body: <p>I created a custom ListView with a custum layout defined in a xml file.
  My XML looks like this: <a href="http://pastebin.com/1TA715MG" rel="nofollow">http://pastebin.com/1TA715MG</a>
  and my ListAdapter like this: <a href="http://pastebin.com/kqTWAJE5" rel="nofollow">http://pastebin.com/kqTWAJE5</a></p>
  
  <p>If i create a list and fill it with Products, there should be displayed a thumb at the left side of each item. This works for 98% of the items, but sometimes there is just a transparent image. If i now scroll down and up fast, so that the item is not longer displayed, the image appears Ô.o this effect is really strange in my opinion, is there something that may cause the bug?</p>