TC, Cucumber, jRuby,

I'm having an issue with getting Cucumber tests to run in TC:

• Currently on OSX/SL, will be on Ubuntu soon enough
• jRuby 1.6.2 (Rails app requires it)
• All other tests run fine.
• Get the error: [Execute cucumber:ok] undefined method `autorun' for class `#<Class:0x137ea14c3>' (NameError)
  
• http://youtrack.jetbrains.net/issue/TW-17414 is the only mention on the 'Net that I can find, but the fixes mentioned there seem to be no help.

Anyone have this running?