Cd dvd out of order

 Joseph,      Unplug the computer from the wall and open the case. Make sure that the power cable and the data cable for the cd drives are plugged in.  Check both connections, motherboard and CD.  Restart the computer and go into MyComputer. Check to see if the drives are there. If they are not, Next I would go into the bios and make sure that the Bios recognizes them. Some computers you can get into Bios by tapping the delete key on power up.  I would assume that when you installed the Hard Drive, none of the CD cables were removed or changed. Try the above steps.                                                             Joe < Data Miner >