NAV has detected a virus on your computer

Hello, I'm new here and hope I do this ok. I have looked around and didn't see a similar problem.
I have windows xp. I got this computer last June. It came with NAV and I keep it updated regularly (the klez worm devastated my old computer! - so I am very careful). I never open any questionable e-mail. I receive occassional warnings about a virus attached to certain e-mails and of course I immediately delete them.
Yesterday I got 2 warnings (when downloading e-mail) which were different. This is what they said:
VIRUS ALERT
NAV has detected a virus on your computer
Object name: C:/DOCUME~1/donna/LOCALS~1/Temp/NAV19.tmp
Virus Name: [email protected]
Action taken: Unable to repair this file
(The second warning was the same except it said NAV50E.tmp

I immediately did a virus scan and it showed no viruses on my computer.
What does all this mean??

Then, as I had the NAV program open, I snooped around and came across 100 quarantined viruses! The program said they couldn't be repaired.
What do I do??
Why do I have all these viruses in my computer when I never open infected e-mails and I am supposedly protected???

I hope someone can help me.
I went to the NAC website and they do everything they can not to help you. You can't even send a problem by e-mail to tech support on weekends.

I hope I was clear, and thanks for any help!
Donna J

 

An infected virus file contains a virus whether or not you opened it. Quarantined means NAV will prevent you from running the infected files, and acrivating the virus.

 

Yup. It just means that NAV is doing it's job.

Launch the Quarantine Console, highlight ALL files inside, and press "remove".

They will be deleted.

Cheers,