Hello Everyone, I've had my 15 inch Macbook Pro for almost four years and haven't had any major problems with it until today. I was browsing online when suddenly my screen was filled with this pixelated horizontal lines all across the screen. So, I restarted the computer... heard the start up chime then came a grey screen with the same lines, I can see the apple logo at the start up and the loading bar underneath it... then the screen turns blue, still with the lines and that is all I'm able to see, I'm unable to do anything after that. Any help would be greatly apprechiated, I'm 100% clueless on how to fix this... Thanks, Amanda Here's how it looks, sorry the quality isn't great.