My computer froze up while on the internet. I shut it down. When I turned it back on it will not go past the BIOS screen. I tried F2 set up and it just shows "Preparing to enter setup". Will not ever get there... So then I try F12, "Preparing one time boot menu. again never goes there. I've turn on by holding the on button and sleep button at the same time, this indicates Diagnostic Boot Selected. Still nothing! Please someone give me some advice. Is my hard drive just dead?