Yeah, I get the same thing. Mine mostly comes from an IP within my network (I'm on a multiple T1 connection at my apartment). Personally I like to see who's trying to get into my computer, so I don't mind all the popups, but if you really want to get rid of the popups, go into the NIS, and turn off the option to notify you upon intrusion attempt.
I don't have the exact menu structure to get to it because I'm at work, but I'll look it up and get it to you later.
Its a frigging Laptop, not a Labtop!!!!