title: Eclipse Indigo: how do I uninstall a plugin if the Help -> About Eclipse SDK dialog won't display?
body: <p>Scala-IDE is messing up my Help -> About Eclipse SDK dialog, so the obvious method of uninstalling is not working. (as mentioned <a href="https://stackoverflow.com/questions/6583544/eclipse-3-7-indigo-about-dialog-error">in this other question</a>)</p>
  
  <p>How can I uninstall it?</p>