I'm using a Sony Vaio laptop which is a year and a half old, and I was on YouTube, then the screen went black and restarted, so the Sony Vaio screen shows up, and now it's stuck on the screen where you would tap f7 to bring up safe mode as well as the other options. The screen is all black and there is a blinking white line that goes down a few inches, then stops. Does anyone know what to do? When I restart again and click f7, f8, f11, f12 or crtl+alt+del, it doesn't bring up any safe mode options. It's just stuck on that screen. Please help! F2 is literally the only way to get out of the black screen, but it goes to the bios thing, I think. So it's useless. When I try booting from a windows recovery cd or Linux cd, it doesn't work. This is the worst thing ever!!!