I’ve looked a little more closely at this and it seems to me that it’s actually Restart that doesn’t work - when I do start/shutdown/shutdown the machine actually generally seems to shut down ok. When I do start/shutdown/restart this almost invariably hangs on the “shutting down” window, even when doing a re-start immediately after booting up. This is a new problem for me (as you may imagine, re-start is a common option to choose when using win98se !!!)