I have a Samsung Mesmerize. We have installed the Free Ringtone app & I downloaded three ringtones. I set it as default but I power off the phone & turn it back on the ringtone disappears. They aren't even in my ringtone menu! What am I doing wrong? Also, is there a way to make phone calls louder as I work in a noisy setting. Is there an app or hack or secret switch to make the person on the other line louder? And yes, all my volume controls are at the highest level. Thanks!