I have never experienced the problems you are having right now. Press Menu--->Settings--->Ring Styles. You can cycle through the different ringer profiles there. To change the ringtone, go into the ring style detail and change the "Calls" ringtone to the one you want.

Hello,
I've had my V360 for almost a year now, and I am curious to see if anyone else has had these problems. For one, all my java applications are randomly gone. I know you can choose to 'delete all java applications' in a menu, but I have not done that. I dont have games anymore, and I definitely dont have my audio player. Secondly, I cannot figure out for the life of me how to change my ringtone. Sounds pretty noobish, right? Well, I have changed it about 50 million times in the year I've had it and suddenly that option has dissapeared in my phone. I havent changed it in maybe 2 months now, so I thought 'Oh, well maybe I just forgot..' or something. But I cant figure it out, and the manual does not show how to change the ringtone at all. I do, however, keep my phone on vibrate pretty much 24/7 because of school and work, but I still want to be able to figure out that option [I feel incredibly dumb, by the way.]
Thanks for any help/suggestions!