I have the HTC evo and I know you can change the ringtone-the presets or your own downloaded- for when different people call. I was jst wondering if u can set a different tone to play when different people text. I don't care if I can only use the preset ones, instead of my own, I jst really want to know who's txting by the tone! Or can I at least use my own sounds for a text? And how? Help please