Okay, for those of you that know me, great. For those that don't, I work for a small computer repair shop. Today I encountered a really weird issue that has caused a brand new computer to be unbootable. I'm assuming the GPT partition was damaged somehow, but I don't know if that's it or not. Okay, so I pulled the drive to restore a backup from another computer (from the customer's old machine). Before I pulled it, it booted completely fine. I could access every nook and cranny of the machine. After placing the drive in a known good drive dock and attempting to pull it up in Windows Explorer. The drive not come up (Windows recognized it as a new device). So I ejected the drive and placed it back into the machine, and put the backup on another drive. To my surprise, the computer did not boot. It sat at a black screen with a list of the SATA devices it recognized (the dvd drive, and the HDD). I have reconfigured the BIOS, and made sure everything is good on the low level hardware, and still nothing. I believe it got borked when I placed it into the drive dock and tried to access it. Does anyone have any insight on what may have happened?