Index: panel-plugin/netload.c
===================================================================
--- panel-plugin/netload.c	(revision 7079)
+++ panel-plugin/netload.c	(working copy)
@@ -247,6 +247,14 @@ static void run_update (t_global_monitor

     if (global->monitor->options.update_interval > 0)
     {
+        /* reduce the default tooltip timeout to be smaller than the update interval otherwise
+         * we won't see tooltips on GTK 2.16 or newer */
+        GtkSettings *settings;
+        settings = gtk_settings_get_default();
+        if (g_object_class_find_property(G_OBJECT_GET_CLASS(settings), "gtk-tooltip-timeout"))
+            g_object_set(settings, "gtk-tooltip-timeout",
+                global->monitor->options.update_interval - 10, NULL);
+
         global->timeout_id =  g_timeout_add( global->monitor->options.update_interval,
             (GtkFunction)update_monitors, global);
     }
@@ -823,7 +831,7 @@ monitor_dialog_response (GtkWidget *dlg,

 static void monitor_create_options(XfcePanelPlugin *plugin, t_global_monitor *global)
 {
-    GtkWidget        *dlg, *header;
+    GtkWidget        *dlg;
     GtkBox           *vbox, *global_vbox, *net_hbox;
     GtkWidget        *device_label, *unit_label[SUM], *max_label[SUM];
     GtkWidget        *sep1, *sep2;