hey guys, I got a new ibook 2 days ago and i got the 256 built in and the 256 mb chip, well a friend gave me a free stick of 512mb I been trying to install it but for some reason I can't unlock the ibook keyboard first i use a lil flathead and poped the unlock key off by accident. I seems to have put it back on but i still can't unlokc it to install the new ram stick what should i do?