so like since sprint doesnt let you get free ringtones without the internet so you have to convert them to a video and then put them on you memory card through the computer and then you can set it as your ringtone. WELL it works fine and all that but when someone calls me it switches to some random ringtone. ALL BY ITS SELF! SO ANNOYING. It won't play the song i want it to play all by it's self. help?!