Kaspersky
I find that Kaspersky is blocking a lot of internet sites that I want to go to from opening.....Also the Spam program in Kaspersky Internet Security let's a lot go through.
Zone Alarm slowed up my new machines and Norton and MacAfee stopped them.....
I know there has to be a good program out there but I am starting to think that you need 1 program for AV, another for Spam, a third for Spyware etc.etc
Elliot