Sorry for my delay…
I´m a XP user not NT4 so I can´t help you too much…
Ask Vlk…

For NAV remove see RNAV2003 at Freeware completely compatible with avast! on XP Pro http://www.avast.com/forum/index.php?board=1;action=display;threadid=834;start=new
and the forum DOS under XP / NAV http://www.avast.com/forum/index.php?board=1;action=display;threadid=259;start=0

I don´t think that a 1995 installation have something about it… Symantec changed a lot since that time…
Do you have a firewall, what is in its log files?

Maybe you can see if any spyware is in your system. I suggested some links at http://www.avast.com/forum/index.php?board=1;action=display;threadid=834;start=new

Good luck :wink: