Right on the flat (square?) connector that connects to the mobo. I thought the cable pulled away from the board instead of up from it, and in the process dislodge a couple of the wires from the connector. They're all black, so it's hard to know which goes where. After further dismantling the case of the screen, I discovered the cable goes to another board on the back of the screen, I figure I could just replace the cable, but I have no idea what it's called. It also seems very delicate, so I want to proceed with caution before I replace it with the cable out of the working laptop (and risk having two bad eggs).