Hello, I''ve installed fox-1.4.31, fxscintilla-1.63 and fxruby-1.4.4 on my Gentoo-box. When I press this button: " FXButton.new(toolbar, "\tReset\tReset the viewer.", loadIcon("reset"), @viewer, FXGLViewer::ID_RESETVIEW, FRAME_THICK|FRAME_RAISED|LAYOUT_TOP|LAYOUT_LEFT) " I got: " FXRuby.cpp:145: FXASSERT(result==0) failed. " and whet I select something in the FXGLViewer the application crashes: " discretizer.rb:1138:in `drawContents'': Expected FXDC * (TypeError) from discretizer.rb:1138 " The strange thing is that when i use the pane: " FXMenuCommand.new(pane, "R&eset\t\tReset all viewing parameters", nil, sender, FXGLViewer::ID_RESETVIEW) " it works. Regards Bj?rn Bergqvist