hello to all! i have a black macbook for a year and these days is very slow even if i am using only one adobe programm. at times the program quit by himself. i have 1gb memory but i will make it 2. the question is what happened and now my mac is slow when then wasn't? is there something i can do like we do defragment on pcs or something to make it quicker like it was before? thank u i really need answers cause i have overload of work and it doesnt seems to want to help me!!