Threat.DateOvderflow virus alert

Hi List,

A scan of my hardisc didn't detect any virus. However viewing the Log
of the NAV activities revealed I have been getting files infected
with the virus Threat.DateOverflow virus from the list and from some
list members

Activity log says:

The file Unknown000.dat in compressed file G:\folder....\filename.txt
is infected with the Threat.DateOverflow virus. No action was taken

It had been my practice to copy and paste email messages into
notepad, then to read them offline. However, I don't remember saving
some of these files, and some of the files were from email addresses
I don't have direct email contact with?

Some of the infected were:

Camtronic case.txt
CNC demo.txt
dremelMount.txt
motorcontrol.txt
Eratic X.txt
motornoise.txt
vectoroffer.txt
What spindle to use

Anyone else computer infected with the Threat.DateOverflow virus?

Peter