Please Print this to get reference.
You have disconnected the cable from the hard drive by accident. Before working in your computer: Ensure that the work surface is flat and clean to prevent the computer cover from being scratched.
To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as a connector on the back of the computer).
Assure that the hard drive is plugged in. If it is not plugged in, then plug it in with a correct fitted cable and the power cable.
Edited by Jay-P VIP, 03 January 2009 - 08:16 AM.