I have the same bug on 11.04, and can confirm that either setting SSH_AUTH_SOCK = 0, or deleting the directory it is pointing to (/tmp/keyring-something) solves the problem.
I have the same bug on 11.04, and can confirm that either setting SSH_AUTH_SOCK = 0, or deleting the directory it is pointing to (/tmp/keyring- something) solves the problem.