Good Evening. Im a new member so please excuse me if i've posted in a wrong section. So, i have a MacBook Pro 13 (2013 Model) Quad Core with 8GB RAM and the classic Intel Graphic 4000. I think you understand the model of my laptop now. Well, two days ago i opened my MacBook and when the message Welcome (of Windows 7 Ultimate) gone then i've get a black screen. Everythink seems to work but i have no screen. In safe mode i have no problem of course. Then i restart my laptop to OS X Maverick and i log in normally. After a few seconds my laptop goes to Sleep Mode randomly. I'm writing a text or i'm surfing in Mozilla or whatever it sleeps. And my settings in both Windows or OS X are set to no sleep even if i use battery or cable. I'm really sad and i have my laptop 1 year. I've been in Apple today but i have Service meeting at next Friday. Please help me if you know something about it. Thank you and have a nice day.