It is possible that some American websites only work if you are in the usa, I have had some web sites in the past which flag not for use outside of the usa-
could that be what is happening here. My malware scan was clear with 3 scanners used.
Perhaps the American are protecting their websites from potential outside threats and restricting usage to the usa?. not surprising with all the hacking recently, easijet the latest target today with 9 million customers.
The check by DG_SHADOW1966 has proved it was not my ip being blocked, thanks for that very useful confirmation.