Does the same happen on another computer? Also, do you hear anything different when you plug the drive in and it turns on?
Thanks for the response. Yes, the same thing happens when I treid hooking it up to other computers, and yes, the sound is there, you can hear the hard drive spinning at start up, just like it always did.
I've also taken the hard drive out of the case, and put it into an enclosure, but then i was able to see the drive on my computer, but when i would click on the drive a message would pop up saying - please insert disc into F: drive. (or whatever drive it was).