Well, now it just randomly started working :| ughh. I did nothing to it and it randomly started working again (after 2 hours of not working), but thanks for trying to help!!!!!!!!!!
To answer your questions anyway, it's used. I received it as a gift because I'm starting up a business and my old blackberry broke. I have no experience with it (mine was a newer model), and my friend had had no problems with it so I don't know where this problem came from but hopefully it won't re-occur. Anyway, thanks again!
EDIT: It has stopped working AGAIN. I guess the problem is that the wheel is broken. It will work for a few minutes then not work at all.