diff -up gnome-media-2.25.1/gnome-volume-control/src/gvc-balance-bar.c.balance gnome-media-2.25.1/gnome-volume-control/src/gvc-balance-bar.c
--- gnome-media-2.25.1/gnome-volume-control/src/gvc-balance-bar.c.balance	2009-01-03 13:19:36.000000000 -0500
+++ gnome-media-2.25.1/gnome-volume-control/src/gvc-balance-bar.c	2009-01-03 13:17:53.000000000 -0500
@@ -75,6 +75,12 @@ _scale_box_new (GvcBalanceBar *bar)
         priv->scale = gtk_hscale_new (priv->adjustment);
         gtk_widget_set_size_request (priv->scale, SCALE_SIZE, -1);
 
+        gtk_widget_set_name (priv->scale, "balance-bar-scale");
+        gtk_rc_parse_string ("style \"balance-bar-scale-style\" {\n"
+                             " GtkScale::trough-side-details = 0\n"
+                             "}\n"
+                             "widget \"*.balance-bar-scale\" style : rc \"balance-bar-scale-style\"\n");
+
         bar->priv->start_box = sbox = gtk_hbox_new (FALSE, 6);
         gtk_box_pack_start (GTK_BOX (box), sbox, FALSE, FALSE, 0);
 
