I can now verify that under Hardy there is no window opened to request the passphrase. Plus, when I go into Preferences / Encryption / Remember PGP Passphrases, the message "A supported PGP passphrase caching agent is not running" is the only indication of a problem.
When trying to send a signed message, there is no passphrase prompt and there is no error message indicating that it could not sign the message. All indications are that there is a remote server problem, not an encryption failure.
I can now verify that under Hardy there is no window opened to request the passphrase. Plus, when I go into Preferences / Encryption / Remember PGP Passphrases, the message "A supported PGP passphrase caching agent is not running" is the only indication of a problem.
When trying to send a signed message, there is no passphrase prompt and there is no error message indicating that it could not sign the message. All indications are that there is a remote server problem, not an encryption failure.
Enigmail 2:0.95.0-0ubuntu4 nobinonly- 0ubuntu1
Thunderbird 2.0.0.12+