Just recently youtube.com stopped working for me (I would get a 404 not found error). Shortly after that, when I visited apple.com, I was redirected to "publisher.vitrue.com" (Anyone know anything about this site?). My computer was the only one in the house doing this. Resetting airport stopped all of this but I'm a bit concerned now. I've heard of DNS changers but I haven't installed ANYTHING in the past 2 months. Should I be concerned?