My keyboard for the White MacBook is not allowing me to type in my password to log in. Sometime, when I turn it on, it repeatedly write something as if the keyboard is jam(I'm not sure what letter it is because it is in password form). However, when I restart it, it doesn't do it anymore but it still won't let me type anything. I am so confuse. It was working fine just the other day. I did not spill anything on it or did I drop it. Is there anybody out there who can explain why this is? I haven't been able to use my computer in the past 4 days!