Please help me... My Macbook was fine before and I just went to turn it on, it made the sound like it tried to boot up, but after the backlight of the screen originally lit up, it never changed.. It never displayed the Apple and it never started. It just stayed lit and blank. My Macbook is quite old, (its the black one...) I just don't understand why it won't just start. I have looked on these previous forums for advice,and they say look for 'lose ram' now... I know what ram is, but where it goes and what it may look like lose, i have no idea?! Argh, I only paid 50 for a new charger last week, and I don't want to pay more. Any tips of advice on how to get it working??? Thankss.