Hi all,
Well, that went well! I don't use my laptop daily so make a point of visiting Live Update when I do switch on. This time, there was a massive ~60MB to install. I did this and ran LU again and got another ~50MB, this time with a requirement to restart, which I did. After that, the laptop ran very slowly-to-hanging and the N360 menu wasn't responsive. It stayed like this despite a couple of restarts. This morning, though, I checked again and everything seems to be OK now.
Back to my PC, on which the updates seemed to have been OK, this has also been off overnight. On this m/c, if I hover the mouse over the three dots, they light up, but when I click on them, nothing happens. I have to open up N360 to get to the ID Safe log ins. I can live without it for now, having installed LastPass, but thought I should report the experience.
Ian