AMANOFFEWWORDS, Mike Jenvey, PPRUNE POP, Wedge et al
Thanks for all your replies and advice, I am 7 hours ahead of you guys in UK so a time lag in my reply.
NAV now has auto protect and email scanning enabled, but also ZoneAlarm has email scanning so I feel moderately safe but desperately need to get NAV updated. I have the MS Sasser patch and the removal tool and have run adware, seems the only prob is update.
I have noted all your advice and will try now to get my NAV updated.
Cheers