My iphone 4 seems to have an issue with orientation.  It can be almost impossible to get it to orientate the way I want it.  I know about the orientation lock on it so that is not the issue.  It seems to get stuck and does not want to leave the way it is oriented.  I try shaking it and that does not seem to help.
				
			
 
 
		 
 
		 
			
		 
			
		 
			
		 
			
		 
			
		 
			
		 
			
		 
			
		 
			
		 
			
		 
			
		 
			
		 
 
		 
 
		