Anyone else having problems with Yahoo DSL? possible Blaster virus?

[Blarg]

I was getting weird off and on slowdowns, and then I couldn't get a window to open or refresh properly at all. Then this message popped up that I might be infected with the Blaster virus, but now things are working again. Don't know what the blaster virus is or what it does, and have a subscription to Norton AV always running in the background. I started Norton scanning, but is Blaster a "worm"? If so, I don't think Norton can detect it.

Anyway, maybe it's just Yahoo DSL? Not sure what to think.