title: Selenium IDE: cannot run a test case or switch to the command table
body: <p>I've written a test case using the Selenium IDE. I would like to run the test (using the play button) and I would like to switch to the Table tab so I can see the commands.</p>
  
  <p>As seen in the screenshot, I can neither click the play button nor switch to the Table tab. Why?</p>
  
  <p><img src="https://i.stack.imgur.com/00kAp.jpg" alt="selenium capture"></p>