Options -> Advanced Services -> GPS -> Menu (ie press the menu button and a menu pops up and select the) ->Refresh GPS. The menu button is the one that has the Blackberry sign. I doubt just standing outside will activate the GPS. Try doing it again even on a balcony/veranda or by the window. When GPS is activated the bearings (latitude & longitude) , a fix time, no of satelites and an accuracy are shown.
Posted via BlackBerryForums.com Mobile