my week 29 macbook is absolutely perfect, but starting yesterday, when i boot up, it stays black for about 20 seconds before turning on (when before it did so almost immediately). 
is there anything wrong, or something I can do about it to "fix" it? It's not a big deal and it runs perfectly once it has booted up, it's just the initial part that...stalls or something?
	
		
			
		
		
	
				
			is there anything wrong, or something I can do about it to "fix" it? It's not a big deal and it runs perfectly once it has booted up, it's just the initial part that...stalls or something?