ERROR [2008-03-24 01:54:40Z]: Unhandled exception in GLib event handler.
System.NullReferenceException: Object reference not set to an instance of an object
  at (wrapper unknown) Gdk.Rectangle:PtrToStructure (intptr,object)
  at (wrapper managed-to-native) System.Runtime.InteropServices.Marshal:PtrToStructure (intptr,System.Type)
  at Gdk.EventExpose.get_Area () [0x00000] 
  at MonoDevelop.Components.Docking.DockContainer.OnExposeEvent (Gdk.EventExpose evnt) [0x00000] 
  at Gtk.Widget.exposeevent_cb (IntPtr widget, IntPtr evnt) [0x00000]