STOP THE PRESS!!
I haven't changed anything since yesterday, since my last post, but the hot chick has just informed me that the virus database has been updated!!
I am guessing that this was a server fault at the other end?
If so, or whatever the problem, it seems to be ok now. If the problem never happens again, then please accept my thanks for all the help onm this issue.
It was good to know that the program was still working throughout and I could still feel at least partially protected.
Thank you once again.
Good luck to everybody else with the same issue.
Si