I once had McAfee "internet Guard Dog", and it caused a lot of lockups on my machine, which disappeared when I installed Norton.

However, I was noticing how much memory is used by Norton on my work comp. and it got me to thinking about making a switch. All the combined NAV apps. are using 21 mb (when running in the background) I need another stick of RAM, which doesn't help.

I'm about to put together a box for the house and am trying to decide whether to stay with NAV...hmm, maybe at least until my subscription is about to expire.