Help with Hibernation Mode

Hello,

My wife was looking at a church website and up pops a "R" rated Youtube Video. Shed tried to close it but the computer locked. She turned it off and now the problem ... when I turn the computer on it fires up but after it starts goes directly to hibernate mode. I hit the power button and it comes back from the hibernation mode but then after it re-starts within 20 seconds in goes back into hibernation mode and the cycle continues. I tried the "hard start" with the battery out and unplugged with the power button down for 1 minute, restart ... no luck. Please help and thnak you.