Great information Eddie. The local radio station has a computer tech show on every Sunday, and the guests have repeatedly stated that there is no such thing as a perfect, antivirus program. Your antivirus program is as good as the last virus detected, reported and updated. New virus' often take up to a month to show up to the level where program updates are created to combat them. The same guests agreed that AVG and AVG-Free were the best of all the antivirus programs--better in most instances than those you must pay an annual fee to use.
Virus', worms, variants, etc.., primarily are picked up from emails, and more often than not they are in emails that have been forwarded dozens, if not hundreds, of times. The ones that you should be particularly aware of are those that say you must forward this to everyone on your mail list or something bad, or good, will happen to you.
Another nasty one that recently rose it's ugly head as a big-time scam that a lot of folks have fallen for. It's a pop-up that states you have a worm, or virus, it was detected by Norten, AVG, etc.., but could not be repaired. To repair this you must click on a link, one that sells a fix for this nasty worm (that you do not have, but soon will), and all you have to do is pay them $10. Next, it will ask for you to pay with a credit card, and tell you it's a secure site. Now they not only have your credit card number to go shopping with, at the end of the message your screen will go black and your hard drive is trashed. Lovely bastards they are.
The irony of this is my wife got the message the same day we were listening to the computer tech program, she followed their instructions, which was to turn off the computer by holding down the On/Off button and let the computer reboot using scan disk. It worked and she has not seen the message again.
Like Eddie, I also use a couple other programs to keep the computer clean, they're free, they work great, and they provide a bit of an edge against some of the Internet nasties. Among the best is Advanced System Care, which I highly recommend.
Thanks again, Eddie,
Gary