Ok, so my mate lent me this computer game. So what, it was made in 2005, but it was REALLY fun. So I install it on our 6 month old vista (cos my laptop was sent back to the computer gods to get replaced). I installed the game, and a compatibility problem error came up. So, cos I'm an impatient person, I just wanted to play the game I spent a whole 5 minutes installing for. So I pressed run program. The game worked fine. I finished half the game in one day, and the computer was fine. I shut down the computer as usual that night and went to bed. The next morning, I'm home alone so I get up and do my own thing. I switch on the computer, and started up msn and facebook as usual. I signed in, and suddenly, the computer screen went blue and the computer came up saying that it was dumping the physical memory. I started the computer up in normal mode, to have the same thing happen again.
So I started the computer up in safe mode, and opened each program to see if it was the problem. An error came up about ContentWatch. I assumed this was something to do with interenet connection, so I didn't bother. I couldnt find out what the problem was, so I shut the computer down, and started it up normally. It was fine. I called dad to tell him what happened. The thing with my dad is, he thinks hes the IT man. He thinks he knows everything about computers. Without thinking, he rips open the disk drive and breaks my Age Of Empire disks in half.
Strange thing was, the game wasn't even running the day that the computer stuffed up. Games are now forbidden on my father's Vista.

So I did some research. This error came up.

Stop: c0000221
Unknown Hard Error (SystemRoot\system32\ntdll.dll)

File Header CheckSum does not match the computed CheckSum

Aparently something, somwhere, is corrupted. Any help?

~EMOfantasy