Well...
I bought a new motherboard off my brothers friend, and to get it working (apart from spending £110 on a new case and 2 PSU's, 1 of which isn't compatible) I needed to use one of my bootable hard drives. Otherwise I couldn't start anything, so I took my OS hard drive out, and tried to load. The BIOS really didn't like not having it's own hard drives and CD drive, so I re-configured them. After all that I tried booting again. Didn't work, it came up with a NTDFL error, or something like that. So I tried to move things back to the way they were to start with. No luck. So now I'm running UBUNTU on my secondary hard drive in my old PC, and I've spent the last 3 nights trying to fix it. I've managed to get so far as it asking me to run from the CD, it tries to install it, but it doesn't work properly. :dry:
So that's how I broke them. I'm not running the mac, and Ubuntu(A form of Linux/Unix) and can't play any of my "Games for windows" games, which happens to be all of them... :dry: