Hi Guys,
Nice to see it was missed (in a perverse kind of way)!
I don't think a virus was responsible, I have been told by someone in the know that sometimes these things can either happen out of the blue or someone somewhere can press the wrong key, nothing more, nothing less.
Anyway, normal service has been restored and if it happens again I'll know what to do and get service restored quicker.
Regards,
Frank.