Hi, im having a problem with a Toshiba Satellite A300, the problem is that when i turn the laptop on, after the toshiba logo the screen stays black, the fans go louder but the screen stays black. I tried everything, removing battery, starting without battery, reseting bios settings, didnt work. Even when i set the boot device to cd/dvd and put in a cd the screen stays black after toshiba logo. Sometimes after toshiba logo i get blue vertical lines but they disappear after 1-2 sec. Im guessing it might be HDD, System or Screen problem but i dont know.