This may belong elsewhere... but I downloaded and and installed wxGTK on Fedora Core 2 (I know I know, beta software) then downloaded and built wxRuby successfully (at least I didn't get any errors - extconf.rb, make, make install). Whenever I try to run a sample program I get... [mike@zootoo minimal]$ ruby minimal.rb /usr/lib/site_ruby/1.8/i386-linux-gnu/wxruby.so: wrong argument type false (expected Class) (TypeError) from minimal.rb:2 ....can anyone dangle a carrot in front of my face and lead me in the right direction here? Thanks! Mike