If anyone has an explanation I'd be so appreciative!  I have a hero and so does my boyfriend and they both just randomly reboot.  Sometimes while we're using them and sometimes they are just sitting on a table and they reboot!  Has anyone else had this problem?  If so, is there a fix?  We are both out of the 30-day time frame but we do have insurance on both.  Any help gladly accepted!!  TIA