I don't think I've ever asked for computer help here before, but I'm having a really strange problem. I am quite used to the little icon for Windows Live Update popping up and asking me to install stuff, and it has never misbehaved like this before. But right now it simply will not leave me alone. I have "installed" security update KB979683 a bizillion times this evening. But after telling me it has installed it pops up just a minute or so later and asks to be installed again. Is this a trojan horse of some kind, or am I...