'Strewth Mac, how'd'you find
that out? I'm impressed!
I won't do that now, because I already did a Keef-style "bodgit and run" fix, which does exactly what I want it to. I added a nice, simple few extra lines to smb.conf - and that was that! No ID, no password, just allow total access for anyone with an IP address on my LAN.
There's nobody else on my home network so I have no desire for added security (in fact, I prefer no security inside - the firewall in the router does a sterling job). I'd like to stop all the "give the root password" stuff - I reckon I type that about once a minute when I'm tweaking Linux stuff.
I suppose a clever hacker in my back garden might get past the security on the WiFi, but I'll live with that. I sat in the garden this afternoon, Skyping to number two daughter with the Ipaq. Then I realised I was using my next-door neighbour's WiFi connection

Good job we're all friends!