Hi, thanks, Tabnotebook.new works now. However, if I do this > require 'tk' > require 'tkextlib/blt' > > parent = Tk::BLT::Tile::Frame.new > > nb = Tk::BLT::Tabnotebook.new(parent) > > tab = Tk::BLT::Tabset::Tab.new(nb) I get /usr/lib/ruby/1.8/tk.rb:2762:in `__invoke': unknown option "blt_tabset_tab00000" (RuntimeError) from /usr/lib/ruby/1.8/tk.rb:2762:in `_invoke' from /usr/lib/ruby/1.8/tk.rb:1809:in `_ip_invoke_core' from /usr/lib/ruby/1.8/tk.rb:1843:in `_tk_call_core' from /usr/lib/ruby/1.8/tk.rb:1867:in `tk_call' from /usr/lib/ruby/1.8/tkextlib/blt/tabset.rb:88:in `initialize' from /usr/lib/ruby/1.8/tkextlib/blt/tabset.rb:54:in `new' from /usr/lib/ruby/1.8/tkextlib/blt/tabset.rb:53:in `instance_eval' from /usr/lib/ruby/1.8/tkextlib/blt/tabset.rb:53:in `new' from /usr/lib/ruby/1.8/tkextlib/blt/tabset.rb:48:in `synchronize' from /usr/lib/ruby/1.8/tkextlib/blt/tabset.rb:48:in `new' from /home/philip/workspaces/ruby/test/tabtest.rb:8 Is this my fault this time? I don't really know how to use the Tabnotebook and tabs. Could you give me some hints? -- Posted via http://www.ruby-forum.com/.