i just bought a blackberry curve 8900 off of a friend but all his information is still on it (his BBM, his email, etc.) how do i reset it so it's like new so i could set up my stuff?
ALT + CAP + Delete to perform a reset that doesn't wipe your data.
To delete your data and restore it to total factory condition you would do:
In the blackberry menu go to Options > Security Options > General Settings and select Wipe Handheld.
The device is going to confirm that the data will be erased. Select Continue.
(WARNING: A master reset will result in the loss of ALL user data! It is recommended to perform a backup of the RIM BlackBerry data)