I am new to PC's (Mac User Here).

I now have an alert on my Norton Security Threat saying that
[QUOTE:] Your computer is not protected against this rapidly spreading threat: Trojan.Peacomm [/QUOTE]

I have tried to Click the Protect me Now button (it says it can not protect me, and to try the live updates.) I have done the live updates, but it is still there. Is this something I need to worry about? Should I toss out the PC totally? Will they get an update in a day or two? Is it safe to let my weiner dogs near the PC?

Any insight is appreciated.