I remember once back in college I had both norton and mcaffee running. I forget which did which, but there was a certain virus floating around at the time (chernoble?) and one of these av's would detect it but couldnt clean it, the other could clean it but couldnt detect it...??? So I had to use both in tandem. That was a pain. Even now I'm a little paranoid because AVG picks up things that Norton doesnt even catch a wiff of...
I've been warned that having 2 av's can be a nono, and I was wondering why...