extern kz_thread_id_t tskid_audio;
extern kz_thread_id_t tskid_display;
-extern kz_thread_id_t tskid_menu;
+extern kz_thread_id_t tskid_fileio;
+extern kz_thread_id_t tskid_system;
extern kz_thread_id_t tskid_input;
extern kz_thread_id_t tskid_command;