Secondary Hard Drive

I was running two hard drives in my computer. The primary
hard drive (c died. I replaced it, loaded Windows ME
again and the new drive seems to be working fine. It is
jumpered and cabled as the primary, master drive (like the
one it replaced). I reconnected the second hard drive and
it was detected by the bios but it does not show in
Windows. It is in the device manager as well but with no
drive letter assigned to it. The secondary drive is
already formatted and partitioned with Fdisk from when I
initally installed it. I did not change the cabling or
jumper settings. How can I get Windows to assign a drive
letter to the drive and make it accessable again?