Now dont laugh. Original PC Compaq 5660 Presarion from Nov 1998 had a 120 GB WD HDD that I used with 1394 Firewire. Havent tried it in awhile but tonight I did and found it would not work, though no yellow warnings in Device Manager and Properties said it was functioning normally. Yet I could not open it and it did show as Drive D in My COmputer but said Not Available when trid to open it. It has been so long and so much in between I have forgotten if it had CD for drivers or what. Am I missing something, or what? I have not yet found a driver CD for HDD but there is one for a Firewire I think. Any suggestions on what to do to make it work? Wanted to transfer My Documents off the PC to a different PC and HDD.