So I have a couple problems wrong with my macbook. Its the white unibody one a1342 and 3gb ram and 320gb hardrive. My problems are that the computer does not detect the battery it just has an X over the icon. Also, it just works off of magsafe power but i learned this trick if i were to disconnect the magsafe while its powering on it will work for a couple minutes then shut off. Another problem i am having with it is that i am trying to update it to the new OS but it says not enough space on startup disk. My magsafe is kind of broken but it still provides power may that be a problem? Thanks for any help!