Hi, every "qtruby4 with Ruby 1.9.1" user or contributers, I found the ruby 1.9.1 compatibility reporting site: "is it ruby 19" http://isitruby19.com/ Of course, qtruby4 is here. http://isitruby19.com/qtruby4 Would you like to post to there? I posted the first one. Youhei Kondou