Thanks to everybody for their help, and as ever, I have discovered much of interest, although I still cannot solve the initial problem.

Bernard is right, there is no language bar on this computer.

Even after changing over to UK settings, it still won't print the pound sign, so I guess it would need Windows reinstalled or something like that, anyway it would be way outside my level of competence, so I will just live with GBP for the nonce.

At lest I now know how to print " and @.