well i was originally thinking that you had no internet connection and that your home page was cached into memory so it showed up. but its late and then i realized hello retard hes posting here so obviously he has functionality and connection with 2+2. I would try and do a search for something see if that works. My only idea right now at 1230 in the morning is that maybe a firewall is blocking things.
on a side note, i tried the ping google.com and also ping msn.com and both times the command prompt just sat there and did nothing. I am not sure i have ever seen that work, i went as far as doing ping
http://www.msn.com and still just sat there.
how is your internet set up? wireless, cable modem, dsl, with router? etc. Maybe just a hard boot of your network/modem, and a reboot of the computer might work. (assuming you havent tried it already) other than that not quite sure.