[leone184]

I'm pretty sure you have spyware on your machine, I had a similar problem a few years ago. These programs will actually take over your computer and direct it to other sites. If the computer has been doing this since day one, it may be something was set up wrong, but if it recently started out of the blue, something obviously changed the settings and may be trying to connect with a server to download your personal information.
The good news is both spybot & Adaware work great at cleaning stuff like this out of your system. Both are free, and very easy to use. I use Spybot on a regular basis, and it works like a charm.