Assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

Hi Andreas.

I am building one unit again with FreeBSD-5.2.1R.
It uses wxWidgets-pgAdmin3-20040711-1.
And Today's CVS-pgadmin3

(pgadmin3:36940): GLib-GObject-CRITICAL **: file gsignal.c: line 2300 (g_signal_handlers_disconnect_matched): assertion
`G_TYPE_CHECK_INSTANCE (instance)' failed
(pgadmin3:36940): GLib-GObject-WARNING **: instance of invalid non-instantiatable type `(null)'

http://cre-ent.skcapi.co.jp/~saito/pgadmin3/FreeBSD521.png

Can you guess this problem?

Thank you.

regards,
Hiroshi Saito