my first incredible got a blown speaker on the ringer. got a new one sent to the house. i downloaded a app so i could not turn up the volume by accident. the 2nd one has never been turned up all the way and now it has a blown speaker. my 3rd one is on its way. anybody else have this problem?anybody know why this would happen or what i can do to stop it from happening? so far this incredible is a great phone except for the speaker problem. thanks