In Hero, how do I turn on the sound and vibration at the same time? With the slider on the left: I can turned Silent Mode On (i.e. sound Off) and Vibration On or Off as I wish, but the moment I slide upwards until the sound comes on, the vibration is turned off automatically. Pressing the End button long: I can turn Vibration Off and Silent Mode On or Off as I wish; but if I turn Vibration On, then the Silent Mode is turned On automatically (i.e. sound Off)--if I try to turn it Off (sound On), the Vibration becomes Off automatically. I need Silent Mode Off (i.e. sound On) and Vibration On at the same time in a very noisy environment. Thank you.