I am trying to customize my contacts with individual ring tones I added to my new Samsung galaxy note2 but every time I try it says unfortunately contacts has stopped. I have even tried to change the default ring to something I added but get the same message. I have tried rebooting and a complete shut down. what should I do next? a factory reset or just take it back and get a new one since it has been less then 2 weeks since i have had the phone.