Oops - Sorry Flaps!
My PC also showed a few ports open too, but also carried out a further check on Shields UP - and all common and Service ports showed fully stealthed - 100%.
Try testing ports here:-
http://www.grc.com/x/ne.dll?rh1dkyd2
Hmmm - I wonder if they're just trying to scare us into buying their Firewall software!
However, I did remove a virus from a work PC using the Virus checker option recently.
I run Norton Antivirus 2003 and free version of Zone Alarm personal Firewall at the moment and am so far very pleased with both.
Only had 3 viruses detected so far and all were caught and quarantined immediately.. so no infection!
-- oops again
ORAC - well done - our posts crossed.. sounds like I was on the right lines then!