Thanks, but I still have no idea where to put your sample code. I tried MainWindowController.cs, but it isn't reached by the debugger when a menu item is selected. -- View this message in context: http://mono.1490590.n4.nabble.com/Enabling-menu-items-tp4535796p4535995.html Sent from the Mono - OSX mailing list archive at Nabble.com.