Well, I came home the other day, woke up my PC from 'sleep' mode, and my computer froze. Everything stopped responding. I though this was weird, so I powered off my computer, then started it up again. It was taking longer to start up than normal, and then I hit a black screen. I got text coming up saying "Reboot and select proper boot device...." I went into BIOS and changed my priority order so my main hard drive containing all my sys32 was first.
I figure a plug came loose in my comp. I've had it for around 2 years now, never had a problem. Months back, I had Windows 7 installed and added a 2TB hard drive.
(System specs at bottom left)