Gem Paths on XP with jruby/mingw/pik

When RubyMine starts, I receive the error:

Failed to load remote gems. No such file or directory - C:/jruby-1.6.5/bin/%HOMEDRIVE%%HOMEPATH%

I'm running on Win XP, JRuby 1.6.5. I use mingw bash and pik to manage my rubies. Pik unsets GEM_HOME and GEM_PATH in order to manage the gem environment for the various rubies. However, I've been using pik successfully for about a year, and my rubygems environment is still set up correctly: `gem environment` returns:


RubyGems Environment:
  - RUBYGEMS VERSION: 1.8.9
  - RUBY VERSION: 1.8.7 (2011-10-25 patchlevel 330) [java]
  - INSTALLATION DIRECTORY: c:/jruby-1.6.5/lib/ruby/gems/1.8
  - RUBY EXECUTABLE: c:/jruby-1.6.5/bin/jruby.exe
  - EXECUTABLE DIRECTORY: c:/jruby-1.6.5/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - universal-java-1.6
  - GEM PATHS:
     - c:/jruby-1.6.5/lib/ruby/gems/1.8
     - c:/Documents and Settings/karnsj1/.gem/jruby/1.8
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
     - "install" => "--no-rdoc --no-ri --env-shebang"
     - "update" => "--no-rdoc --no-ri --env-shebang"
  - REMOTE SOURCES:
     - http://rubygems.org/