I just got a blackberry curve 8310 from my brother and for the time being I'm not going to pay 30 dollars a month for internet and I want to make sure that I don't accidently go on the internet and that the blackberry doesn't exchange any data without my doing anything (I'm not sure if they can do this but there are arrows in the corner and I googled it and it says that it is accessing the internet when those are there)