2006-01-04  Michael Natterer  <mitch@imendio.com>

	* gtk/gtkmenutoolbutton.c
	(gtk_menu_tool_button_set_menu)
	(gtk_menu_tool_button_destroy): use gtk_menu_attach_to_widget()
	and gtk_menu_detach() instead of reffing/unreffing the menu
	manually. Also fixes brokenness on screen change (bug #85715).