I had this same problem

[reltor]

This happened to me when I turned off the security chip after having made the security drive with it on. When I turned the chip back on and logged on with my fingerprint the securedrive mounted.

I still can't figure out when you open up the securedrive window, what the administrator password is? None of mine work either, but the drive does mount.

When I had it set to mount at startup, I got a window that popped up and asked for the administrator password. None of my passwords worked, so I set it back to mount manually.

Kind of weird to me.