title: Selenium WebDriver Click() fails with IE9
body: <p>(I've looked at many other similar posts on SO and have unfortunately not been able to solve this problem, so here goes...)</p>
  
  <p>I'm using Selenium WebDriver (C# implementation, version 2.15) to drive a fairly simple webpage. The page contains a form with two &lt; input >'s for username and password, and one &lt; input > for submitting the form. I can successfully enter values for username and password, but the Click() call on the submit button appears to have no effect.</p>
  
  <p>Per other recommendations, I have tried the following tricks, none of which has worked:</p>
  
  <ul>
  <li>Change window focus to currentWindowHandle</li>
  <li>Click on the element's parent, then on the element</li>
  <li>Add a long implicit wait</li>
  <li>Add a long explicit wait (by sleeping 20 seconds)</li>
  <li>Click a whole bunch of times on the element</li>
  <li>Use Submit() instead of Click()</li>
  <li>Send the keys "\n" to the element (Selenium reports this as an error)</li>
  </ul>
  
  <p>Note that I have verified that the &lt; input > button is indeed successfully found, so that doesn't seem to be a problem.</p>
  
  <p>Also, note that I have verified the button does indeed work outside of Selenium-land. That is, I can browse to the site, enter login credentials, and click the submit button (and it works!).</p>
  
  <p>Also, note that this problem is on IE. It does not occur for me with Chrome and FF7.</p>
  
  <p>So that said, does anyone have any other ideas?</p>