[Ptarmigan]

Pretty sure I clicked both, but it's the sort of thing I could have easily forgotten to do after concentrating on getting the syntax right. I think the space was there after I clicked Save; it was after I'd closed the dialog box--or rather after I'd reopened it--that it had disappeared.

I'll try again this evening, making sure I click Save *and* Apply. Thanks for your help. Thanks also for the tip about trailing spaces being trimmed. That should provide a workaround if I can't get it to work properly.

Oh, and no, only that one plugboard defined.