Todas,

Descargué / instalé el instalador de Windows 1.9.2, y luego RubyMine3.0RC, y lo instalé.

Abrir un nuevo proyecto Rails, con mysql seleccionado como DB, da el siguiente error cuando lo "EJECUTO".

D:\ProgramFiles\Ruby192\bin\ruby.exe -e $stdout.sync=true;$stderr.sync=true;load($0=ARGV.shift) C:/Users/Rob/RubymineProjects/test1/script/rails server -p 3000 -b 127.0.0.1 -e development
D:/ProgramFiles/Ruby192/lib/ruby/gems/1.9.1/gems/mysql2-0.2.6-x86-mingw32/lib/mysql2/mysql2.rb:2:in `require': 126: The specified module could not be found.   - D:/ProgramFiles/Ruby192/lib/ruby/gems/1.9.1/gems/mysql2-0.2.6-x86-mingw32/lib/mysql2/1.9/mysql2.so (LoadError)
    from D:/ProgramFiles/Ruby192/lib/ruby/gems/1.9.1/gems/mysql2-0.2.6-x86-mingw32/lib/mysql2/mysql2.rb:2:in `<top (required)>'
    from D:/ProgramFiles/Ruby192/lib/ruby/gems/1.9.1/gems/mysql2-0.2.6-x86-mingw32/lib/mysql2.rb:7:in `require'
    from D:/ProgramFiles/Ruby192/lib/ruby/gems/1.9.1/gems/mysql2-0.2.6-x86-mingw32/lib/mysql2.rb:7:in `<top (required)>'
    from D:/ProgramFiles/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/runtime.rb:64:in `require'
    from D:/ProgramFiles/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/runtime.rb:64:in `block (2 levels) in require'
    from D:/ProgramFiles/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/runtime.rb:62:in `each'
    from D:/ProgramFiles/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/runtime.rb:62:in `block in require'
    from D:/ProgramFiles/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/runtime.rb:51:in `each'
    from D:/ProgramFiles/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/runtime.rb:51:in `require'
    from D:/ProgramFiles/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler.rb:112:in `require'
    from C:/Users/Rob/RubymineProjects/test1/config/application.rb:7:in `<top (required)>'
    from D:/ProgramFiles/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.3/lib/rails/commands.rb:28:in `require'
    from D:/ProgramFiles/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.3/lib/rails/commands.rb:28:in `block in <top (required)>'
    from D:/ProgramFiles/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.3/lib/rails/commands.rb:27:in `tap'
    from D:/ProgramFiles/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.3/lib/rails/commands.rb:27:in `<top (required)>'
    from C:/Users/Rob/RubymineProjects/test1/script/rails:6:in `require'
    from C:/Users/Rob/RubymineProjects/test1/script/rails:6:in `<top (required)>'
    from -e:1:in `load'
    from -e:1:in `<main>'

Process finished with exit code 1

Se supone que pase esto? También instalé la gema mysql2, pero aún veo estos mensajes en la consola.

¡Gracias por cualquier ayuda!