Hello, I am new to ruby and rubygame and have tried to get http://rubygame.org/wiki/Generic_Game_Template to work as a starting point, but I only get this error: /usr/lib64/ruby/gems/1.8/gems/rubygame-2.5.3/lib/../ext/rubygame/rubygame_core.so: /usr/lib64/ruby/gems/1.8/gems/rubygame-2.5.3/lib/../ext/rubygame/rubygame_core.so: undefined symbol: SDL_FreeSurface - /usr/lib64/ruby/gems/1.8/gems/rubygame-2.5.3/lib/../ext/rubygame/rubygame_core.so (LoadError) from /usr/lib64/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' from /usr/lib64/ruby/gems/1.8/gems/rubygame-2.5.3/lib/rubygame.rb:34 from /usr/lib64/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require' from /usr/lib64/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require' from main.rb:2 I have all dependencies for rubygame installed. I use Gentoo Linux with a 32/64bit multilib profile. SDL, ruby and rubygame are compiled as 64bit app. I hope somebody can help me. Greetings Sebastian BeÝÍer