I just updated to IOS5 (version 4.4) from v. 4.3 and now i've lost video output.  I have the ATV2 going from HDMI - DVI which was working on version 4.3 but now i've lost it when upgrading to 4.4.  
Has this happened to anyone else? Can I go back to the past version?
	
		
			
		
		
	
				
			Has this happened to anyone else? Can I go back to the past version?