I just got my MacBook, so far it looks new, I'm updating my programs right now, except for the 10.4 osx update. I wanted to know if you tap on the touch pad twice does it click on the item, like with a PC laptop? Also I wanted to test if it has RSD. Is there a way to test that? Also what is the other adapter thing? I got two one is the charger for the Macbook I don't know what the other one is for. Thanks in Advance.