Dear all, we are having random, unexplained crashes in GTK, used from guile, with the following outputs: In expression (g-main-loop-run (g-main-loop-new)): GLib-GObject: g_object_ref: assertion `G_IS_OBJECT (object)' failed or In expression (g-main-loop-run (g-main-loop-new)): GLib-GObject: gsignal.c:2133: signal id `32' is invalid for instance `0xa21a820' Any idea of what we could do to track that down? Thanks in advance for your help, Kind regards, Stan.