Why is my computer shutting down?

Xref: kermit microsoft.public.windowsxp.security_admin:139395


-----Original Message-----
I am having problems with my computer randomly shutting
down. I am not always on the internet, I have noticed
that. It is also running slowly. I figure it has a
virus...but how do I fix it??? Is there a website I can
go to and get it fixed for free? I have McAffee and have
been running it frequently and updating it...I don't know
what else to do. Please help.
.
sounds like a worm blaster or trojan horse...go to
microsofts security page and they will have the cure