Ok, have googled and called AT&T but no solution.  I want my phone to vibrate when I receive a text only when I am in silent mode.  The only setting I have come up with sets it to vibrate anytime I receive a text, regardless of what mode it is in.  I don't need it to vibrate when in regular mode because I have the sound notification.  Is there any way to do this on the s4?  When the phone is in silent mode it vibrates when I receive a call but does nothing when I receive a text.  You would think putting the phone in silent mode would automatically cause it to vibrate when a text is received.  Guess I am just used to the iphone automatically doing this.  TIA!
				
			
	
			