I tried to find this on the site but couldn't, so I apologize for any redudancy.  I was listening to my 4g clip today and had the random shutdown/play dead thing happen.  I think that I must have figured out the "soft reset" and was on my way.  Then when I went to change the playlist on the unit I was surprised to find the "lock" on.  Funny thing is that I love everything about this player (mostly the micro SD card expandibility), and will never go back to the iPod with it's proprietary BS, however I have often wondered why they didn't put a "lock" function on the unit.  I thought I read the directions (sort of).  I no longer have them because I threw them in the recycling bin the minute I started loading up the Jonas Brothers playlists.

  Does anyone know how to lock the buttons and is it something any moron could have found on the site?