A couple of problems encountered...

[Peter B]

I was sure I attached the log file, but sorry it didn't work...I'm in Windows at present, so I can't re-attach it :-)
But yes, that was the only change I made, so I was fairly sure it wasn't me who'd messed up the installation.
Anyway, thank you for looking at it - I think I'll just leave the installation as it is for the time being and not make any other changes in case I might lose them all if I have to re-install again.