steev@sigma ~ % vmx-manager
System.NullReferenceException: Object reference not set to an instance of an object
  at VmxManager.CdDriveCombo..ctor () [0x00000] 
  at VmxManager.CdConfigDialog..ctor (VmxManager.VirtualCdDrive drive, Gtk.Window parent) [0x00000] 
  at VmxManager.ConfigDialog.OnConfigureDevice (System.Object o, System.EventArgs args) [0x00000] 
  at (wrapper delegate-invoke) System.MulticastDelegate:invoke_void_object_EventArgs (object,System.EventArgs)
  at GLib.Signal.voidObjectCallback (IntPtr handle, IntPtr gch) [0x00000] 
  at (wrapper native-to-managed) GLib.Signal:voidObjectCallback (intptr,intptr)
  at <0x00000> <unknown method>
  at (wrapper managed-to-native) Gtk.Application:gtk_main ()
  at Gtk.Application.Run () [0x00000] 
  at VmxManager.EntryPoint.RunGUI () [0x00000]