Thanks Dead-I, that does appear to be it as I now have it working on one machine. A few other machines still cannot see it after flushing the cache but they appear to be using a different DNS resolver which hasn't yet updated itself, at least that is my theory. Thanks again - onto the task of...
I've had my free account deactivated and removed, sadly while I have been in hospital. It was not ready to go live so it's not too much of a hardship to go and recreate it all I expect in wordpress as I didn't take a backup but I have most of the source files.
So, I signed up again yesterday -...