I'm getting the attached error when attempting to install the latest Force.com IDE plugin on the latest Eclipse version with the latest JDK installed.  The error comes up after I click next on the "Available Software" selection screen of the "Install New Software" dialog.  How can I fix this problem?  Thank you!

Cannot complete the install because of a conflicting dependency.
  Software being installed: Force.com IDE 20.0.1.201011121559 (com.salesforce.ide.feature.feature.group 20.0.1.201011121559)
  Software currently installed: Shared profile 1.0.0.1284708747720 (SharedProfile_epp.package.java 1.0.0.1284708747720)
  Only one of the following can be installed at once: 
    Structured Source Editor 1.2.2.v201008232126 (org.eclipse.wst.sse.ui 1.2.2.v201008232126)
    Structured Source Editor 1.1.102.v200910200227 (org.eclipse.wst.sse.ui 1.1.102.v200910200227)
  Cannot satisfy dependency:
    From: Shared profile 1.0.0.1284708747720 (SharedProfile_epp.package.java 1.0.0.1284708747720)
    To: org.eclipse.wst.sse.ui [1.2.2.v201008232126]
  Cannot satisfy dependency:
    From: Force.com IDE 20.0.1.201011121559 (com.salesforce.ide.feature.feature.group 20.0.1.201011121559)
    To: org.eclipse.wst.html.ui [1.0.0,2.0.0)
  Cannot satisfy dependency:
    From: HTML UI Source Editor 1.0.401.v200908111935 (org.eclipse.wst.html.ui 1.0.401.v200908111935)
    To: bundle org.eclipse.wst.sse.ui [1.1.0,1.2.0)