title: Eclipse Helios for RCP and RAD developers won't update to 3.6.2
body: <p>I got a strange behavior with an Eclipse installation:<br>
  Even though all update sites are there and accessible, and even though I can SEE in "Install New Software" dialog that there is the new Eclipse Platform 3.6.2.M20110210-1200 I cannot get it installed! Of course it says here that the original request has been modified:</p>
  
  <pre><code>Your original request has been modified.
    "Eclipse Platform" is already installed, so an update will be performed instead.
  Cannot complete the install because of a conflicting dependency.
    Software being installed: Eclipse Platform 3.6.2.M20110210-1200  (org.eclipse.platform.ide 3.6.2.M20110210-1200)
    Software currently installed: Eclipse for RCP and RAP Developers 1.3.1.20100916-1202 (epp.package.rcp 1.3.1.20100916-1202)
    Only one of the following can be installed at once: 
  </code></pre>
  
  <p>But when I invoke "Check for Updates" it simply says "No updates were found."</p>
  
  <p>Why?? How can I get it to the latest platform release?
  Thanks!</p>