title: plupload AddFile click event doesn't work
body: <p>Problem only in Internet Explorer (8-9 version).
  In my ext.js project I use plupload. On my local PC it working fine (in IE and in an other browsers) but on server AddFile button click event doesn't work. I added alert in plupload.full.js file before <code>p.bind("Silverlight:Init", function () {</code> and <code>alert</code> work but in next row doesn't fall (into bind <code>Silverlight:Init</code> function). On my local PC both alert working fine.
  Have you any idea?</p>