How can I completely silence everything in the phone? I long press the red end button and from the pop up, I choose silent. That works for phone calls / email notifications / text notifications. However, after I did that, I went to Slacker and it started playing (even though I had the silent icon in the notification area). I had to then press the down volume key to turn off the media volume. Is there a way to make everything silent without downloading a 3rd party app? Thanks.