Awkward Computer Troubles

I've had my new computer for about 2 months now, and everything's been going great....Until I got home from school. (I'm on my old computer now.)

Anyways, this new computer is running Windows Vista Home Premium. I had put it to Hibernate last night, and when I get home, I turn it on. That little loading bar thing shows up like normal, then the screen goes dark like it does before the login screen shows up. Except, it stays that way for nearly 30 minutes, which is when I get mad and force shut it down using the power button. I then turn it on and am asked if I want to use Safe Mode. So, I choose Safe Mode and it lets me log on. So then, I do a System Restore to yesterday afternoon, before I updated AIM. I then go to restart my computer....Same thing happens. I force shut it down, restart in Safe Mode, then run a Virus scan. Nothing. So then I shut down my computer, turn it back on, and now it's been at a dark screen for about 20 minutes while I do my normal stuff on this computer. The screen is dark in the sense that you can tell it's on, but it's just black. Like, it's just backlit or something.

Has this happened to anyone before, and if so, what fixed it?

go hard restart and just let it load without going into safe mod.

Tried that dozens of times, all I get is that blank screen.

go into safe mode and save all your stuff. -onto a cd or whatever.

If you cant get your cd drive to work, take out your Hard drive and plug it in as a slave into the computer that works and save all your stuff there.

there could be numerous reasons for windows failing like that, all too long to list here. but Number1. while you still can. save it.

System restore = lies. NEVER have i seen that feature work. You are probably looking at a reformat reinstall tbh.

I went into the Event Viewer and found an error: It's called "Kernel-Power", and it basically says the computer messed up during the sleep process. This was under "Critical". So...How do I go about fixing this?

Edit:

And what would I do after that?

Edit 2: There's an option to revert the entire computer back to factory settings. I guess I can boot into Safe Mode, move my files onto my 80 gig iPod, and then do that. =\

Okay, thanks for the edit. IMO, 5.5 hours is enough time...I guess I'm gonna use that factory reset option.