well, Malcolm, I can only wonder if there is not some security setting or cookie protection in your browser(s)....or even interference by your ISP...(though I can't see why any of those would happen). Could you 'possibly' have set some parameter that precludes your browser(s) accessing those pages? (I even tried Google.UK to see if there was any difference...and found none.)

this is what I see when I go the Farquhar Graham page

(screen capture in full screen mode)

...and by the way, in trying to help, I am quite aware that you are a competent user of computers, but others may also be reading this...now or in the future. It is BECAUSE this isn't working for at least one person that I made what may seem like obvious points.