IDE HD Not Recognized

I have a 40GB HD that I pulled out of my old PC which has tons of stuff on it (photos mostly) which I need back.

It worked fine on my old PC, I had it internally.

I have an IDE to USB 2.0 cable and it won’t reconize the HD, a baloon pops up and says it’s not regonized and it won’t mount the drive.

I’v used this HD with an IDE to USB cable before with no problems.

Any suggestions?