diff -ur control-center-2.18.1.orig/libslab/directory-tile.c control-center-2.18.1/libslab/directory-tile.c
--- control-center-2.18.1.orig/libslab/directory-tile.c	2007-03-18 17:04:44 +0000
+++ control-center-2.18.1/libslab/directory-tile.c	2007-05-01 10:22:41 +0100
@@ -644,5 +644,5 @@
 disown_spawned_child (gpointer user_data)
 {
 	setsid  ();
-	setpgrp ();
+	setpgid (0, 0);
 }