Hey guys i have a 3gs and tonight all of a sudden the bottom part of my screen stopped responding.  Cant open any of my 4 main apps on the bottom. Even if i opened another app i cant open anything on the bottme for instance say im in the phone app i cant go to my dialer or contacts etc.  Anybody know the solution for this?
Thanks in advance
	
		
			
		
		
	
				
			Thanks in advance