Cannot find Drive

[Guest]

Been running Vista RC1 without any significant problems since its release.

Suddenly my system doesn't recognize my 2nd hard drive (D.
Yet, Device Manager indicates it's there and it's working properly and the
BIOS sees the Drive on boot-up.

The last thing I did before it "disappeared" was that I copied a recorded TV
show from "Recorded TV" on this Drive to "Recorded TV" on another PC on my
home network running Media Center 2005.

 

[Guest]

I have almost the same problem. Only, my 2nd drive is not seen by Device
Manager. Strangely the BIOS sees 2 Seagate drives.