I found a new FREE A/V, and some how I like how it works.
http://www.avast.com/One has to register it to get an unlock code for 1 year, but it is still free.
I have installed it on 4 PC so far, with no problemos.
It can be scheduled to do a scan at BOOT time ! That is very good, because, if you get a virus, the scanner can find it before it activates again.
I also notised on one PC that it scans during screen saver also. I have not looked into that, its my 6-year old who enabled that function

(She cant even read english, how did she do that?)
The auto update seems to work like a charm.
I have to assume it finds viruses tho, but I have not run into any yet
I have also used AVG and free-av, but I like Avast much more.