I rescently bought a RAM kit from Kingston. Its 2x2GB DDR2 made for apple laptops. I am trying to put it into an intel core duo 2.0 GHz macbook pro. When I put it in and turn my computer on, the light on the latch button turns on but the computer does not turn on. I tried putting it in twice and didnt work. I then switched back to the original 2x512MB memory sticks and it is woring fine. Any help would be appreciated thanks!