Enigmail errors on Vista Ultimate

I am running Thunderbird 2.0 on Vista Ultimate. In the past versions of
Thunderbird and Windows, I had Enigmail working fine. This time around
I am getting some errors messages.

Here are the installation details:

OS - Vista Ultimate
Thunderbird 2.0.0.18 - Works fine
Gpg4win 1.1.3 - Works fine (can list private and public keys)
Enigmail 0.95.7 - Does not work with the existing keys listed in GPG.


Here are the error messages that I am getting:

___________________________

C:\Program Files\GNU\GnuPG\gpg.exe --charset utf8 --batch --no-tty
--status-fd 2 --with-fingerprint --fixed-list-mode --with-colons
--list-secret-keys

gpg: Oops; key lost!
node 0097AC00 01/00 type=public-key keyid=XXXXXXXX a=17 u=13 ..v.
node 0097AB20 00/00 type=user-id
<snip>
___________________________

Any ideas how to import keys in Enigmail's key chain on Vista?

Thank you in advance.

NJ