i am using kaspersky internet suite 2009,norton internet security 2009 and AVG 8.0.all in one notebook. but i had to turn off ,all kaspersky app and leave only the virus protection to turn on, to be able surfing the web.start up also taking longer than usual but i didnt mind it.(norton and avg run normally) so..im thinking whats the point of using kaspersky if not fully utilise it.but i prefer kaspersky than the other two because of the good review it has compare to the others. i decided to uninstall norton,and turn on all kaspersky app.hoping that because of norton i was unable to surf the net.and it turn out to be true. i was able to surf the net now and startup is faster.(its mean that norton and kasper cant be a housemate) keeping the avg cause doesnt have problem with kasper and it expire until 2018.