Really minor ( but annoying) problem on my pre 2. I have changed the alarm tones ( for calendar and SMS) to an mp3 song that I had on my old pre ( minus) but instead of playing till I turn it off in only lasts a few seconds. I have changed to other sounds but they all seem to be the same. Is there any way of changing the duration . If I cant then it is likely that I will mi9ss the sound in all but the quitest of areas ( could just be old age ).