New
#11
Apologies for disappearing. Had to go away unexpectedly over Xmas and NY, so my pc woes took a back seat. Happy New Year to all, by the way.
Looking at the last post from Alejandro, it looks like there isn't a virus, and that I just have to be alert to these incursions and not be worried by them. Sometimes I get one a day, usually not long after starting my pc and opening IE. On the other hand, I can go for days with nothing. Sometimes my Avast spots and blocks them saying it was a URL:MAL - but obviously others get through my AV. When the AV misses them and the malicious pop up gets through, I normally re-start my pc and all is well for the rest of the day. I never get more than one per day.
I'm guessing that there's not a lot I can do about them, unless anyone has suggestions. And thanks to all who have given their time, help and advice - it's much appreciated.