Have you moved your computer at all? Other people help mee out. I wonder if this could be a problem:
Because you say that you can have access to opening and closing the drive, then there must be power to them. Thus, you know that the power cables are connected. And you also say that my computer and device manager do not recognize them, but they did before. And it will not recognize either of the two drives. Thus, could the problem be an IDE cable that cae loose in your computer? Have you looked inside it to see if it connected porperly, as the cable would connect both of your drives to the computer (they are both connected to the same ribbon.) Could you check it's connection to the motherboard? OR perhaps is this to difficult to happen? Well for one thing, it is definitely the communication with the drives and the computer. And the IDE cable could be this connection. Just a guess. Anyone else have any ideas?