Hi all! I am brand new to the Android world, and coming from a Blackberry, my life has changed significantly with my Nexus S. I have one problem that is bugging me: I can't establish any data connection other than wifi (which works perfectly well). I can't see any notification either. All I see at the top notifications area are the four bars, and reading other threads I find all sorts of references to 3G and EDGE symbols. Any clue on this? By the way, is there an Advanced Settings area that I am not finding? All network related settings seem to be pretty basic. (Somebody somewere mentioned an Activate button that solved his issue... what I would give for a magic button like that!) I am in Argentina. My carrier is Personal (part of the Telecom family). Endless thanks!