diff -r 122d4dcce40e -r 28587edbfd06 pidgin/gtkconv.c
--- a/pidgin/gtkconv.c	Sun May 13 10:26:08 2007 +0000
+++ b/pidgin/gtkconv.c	Sun May 13 19:52:05 2007 +0000
@@ -7996,6 +7996,9 @@
 	purple_prefs_disconnect_by_handle(win);
 	window_list = g_list_remove(window_list, win);
 
+	if (NULL == win)
+		return ;
+
 	/* Close the "Find" dialog if it's open */
 	if (win->dialogs.search)
 		gtk_widget_destroy(win->dialogs.search);