Ok so i've had a search but am still a little unsure about the max amount of RAM i can put in my MacBook (mid 2007). Apple says the max is 2gb but am i right in thinking that i can put in 4gb? Or, if i understand it correctly, the MacBook cannot use all 4gb of the RAM, can i put in 3gb? I'm curious about this option as i thought the MacBook had to have the same configuration of RAM in each slot, am i wrong? Hope someone can clear this up for me, i've got 1gb in at the moment but i'm gonna upgrade this week and want to make the right purchase.