What do these seahorse errors mean?

[Adam Funk <a24061 ducksburg com>]

I have a strange problem with seahorse not working on only one of two
Ubuntu computers.  The gpg-agent works in the curses-like way when I
call gpg in xterm, but seahorse doesn't.  (Because seahorse isn't
working but Thunderbird enigmail detects the agent running, Enigmail
doesn't work either.)  The output of 'ps aux OT' after logging into
GNOME includes these commands (with the same start time, owned by my
userid):

/usr/bin/gpg-agent --daemon --sh --write-env-file=/home/adam/.gnupg/gpg-agent-info-beetle /usr/bin/seahorse-agent --execute /usr/bin/gnome-session
[seahorse-agent] <defunct>

(On the computer that isn't giving me this problem, the first line is
the same except for the hostname, but the next line says
/usr/bin/seahorse-agent --execute /usr/bin/gnome-session
and everything works.)


When I try to run 'seahorse-preferences' or 'seahorse-agent' from a command-line, I get
the following errors:


adam beetle $ seahorse-preferences 

** (seahorse-preferences:23588): CRITICAL **: init_gpgme: assertion `GPG_IS_OK (err)' failed

** (seahorse-preferences:23588): CRITICAL **: seahorse_pgp_source_init: assertion `GPG_IS_OK (err)' failed
Segmentation fault

adam beetle $ seahorse-agent 

** (seahorse-agent:23604): CRITICAL **: gpg_options_init: assertion `engine && engine->version && engine->file_name && (g_str_has_prefix (engine->version, GPG_VERSION_PREFIX1) || g_str_has_prefix (engine->version, GPG_VERSION_PREFIX2))' failed
GPG_AGENT_INFO=/tmp/seahorse-YGoN4w/S.gpg-agent:23609:1; export GPG_AGENT_INFO


I'd be grateful for any suggestions or debugging tips.

Thanks,
Adam