diff -up gnome-control-center-2.22.1/capplets/accessibility/at-properties/main.c.gdmsetup gnome-control-center-2.22.1/capplets/accessibility/at-properties/main.c
--- gnome-control-center-2.22.1/capplets/accessibility/at-properties/main.c.gdmsetup	2008-04-08 09:29:44.000000000 -0400
+++ gnome-control-center-2.22.1/capplets/accessibility/at-properties/main.c	2008-04-08 09:32:22.000000000 -0400
@@ -39,6 +39,10 @@ create_dialog (void)
 
 		gtk_image_set_from_file (GTK_IMAGE (WID ("at_applications_image")),
 					 PIXMAPDIR "/at-support.png");
+
+		if (!g_find_program_in_path ("gdmsetup")) {
+			gtk_widget_hide (WID ("login_button"));
+		}
 	}
 
 	return dialog;