Error messages when launching apps from shell prompt
Sometimes when I launch an utility or application from the shell prompt, I get weird messages which I cannot interpret.
(1) When starting Nautilus, KWrite, LICQ, I get the same message:
Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed.
(2) When starting redhat-config-printer, I get
(redhat-config-printer:1692): GLib-GObject-CRITICAL **: file gobject.c: line 972 (g_object_get): assertion `G_IS_OBJECT (object)' failed
And yet, these utilities/apps do run properly.
I just wonder what causes these errors and how I can fix them.