Cosmin said it, sort of. NAV is a much better AntiVirus software. The makers of NAV, Symantec, do a very good job of updating the software, coming out with new virus definitions every three to five days.
I use AVG too, I started after hearing glowing praise of it in another forum. It seems to be a decent virus scanner, It will update itself every 10 days or 2 weeks(I forget which) but you can update manually any time you want
I use AVG all the time to clean up peoples machines, it does detect the Klez virus so maybe yours is not up to date. Running two virus killers at the same time is not to be advised. Conflicts can arise beacause a virus killer does some pretty low level stuff.
You can change how often ir update by right clicking on the tray icon and chosing control centre and then update manager.
Ep, glad to see you come back and tidy up...did want to ask a one day favor, I want to enhance my resume , was hoping you could make me administrator for a day, if so, take me right off since I won't be here to do anything, and don't know the slightest about the board, but it would be nice putting "served administrator osnn", if can do, THANKS