Jim - I have uninstalled and reinstalled SE Personal as you suggested, although it's a bit of a pain having to do so again for 3 PCs. The reinstall has found SE1R10

I know SE Personal doesn't have "Automatic update", but it should find any updates when I click on "Check for updates now" and "Connect" in the subsequent Web update box. When I did so, it told me "No updated components available" - even though SE1R10 is available. So I downloaded what the Adaware website claims is SE1R10, but the defs file that downloaded turned out to be SE1R9 - I just don't understand what was going on. I tried downloading the defs file using 3 different PCs and three different browsers but I kept getting SE1R9.

Anyway, problem now fixed (on one PC - two still to do). But a d**n nuisance