Looks like another one of those simple to fix but annoying sup errors: /usr/lib/ruby/gems/1.9.1/gems/sup-0.9/lib/sup/source.rb:88:in `done?'': undefined method `>='' for true:TrueClass (NoMethodError) from /usr/lib/ruby/gems/1.9.1/gems/sup-0.9/lib/sup/util.rb:560:in `__pass'' from /usr/lib/ruby/gems/1.9.1/gems/sup-0.9/lib/sup/util.rb:547:in `method_missing'' from /usr/lib/ruby/gems/1.9.1/gems/sup-0.9/lib/sup/poll.rb:137:in `each_message_from'' from /usr/lib/ruby/gems/1.9.1/gems/sup-0.9/lib/sup/util.rb:520:in `method_missing'' from /usr/lib/ruby/gems/1.9.1/gems/sup-0.9/bin/sup-sync:146:in `block in <top (required)>'' from /usr/lib/ruby/gems/1.9.1/gems/sup-0.9/bin/sup-sync:141:in `each'' from /usr/lib/ruby/gems/1.9.1/gems/sup-0.9/bin/sup-sync:141:in `<top (required)>'' from /usr/bin/supbin/sup-sync:19:in `load'' from /usr/bin/supbin/sup-sync:19:in `<main>'' This occurs when attempting to import mail from Maildirs