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Message: [QUOTE="anne001, post: 4517697"] apparently, one of the problem was that what I needed was rb-gnome2 //sourceforge.net/project/showfiles.php?group_id=53614 I downloaded gnome2 all and gtk2 installed both. But I still got error messages suggesting problems with the installation, so I went into ruby-gtk2-0.15.0 and hand installed gdkpixbuf, glib, gtk (and atk for good measure). Now I get a new error, /opt/local/lib/ruby/site_ruby/1.8/gtk2.rb:13:in `init': cannot open display: (null) (RuntimeError) from /opt/local/lib/ruby/site_ruby/1.8/gtk2.rb:13 from /opt/local/lib/ruby/vendor_ruby/1.8/gtkglext.rb:1 from openglgtk.rb:2 [URL]http://www.ratiatum.com/forum/index.php?showtopic=22038&mode=linear[/URL] seem to suggest it might have to do with root privilege and opening an X11 window can't do it as a user or some such. Can anyone explain what I need to do? the suggestions seem to work for linux and I am on tiger. [/QUOTE]