gtk_box_pack_start(GTK_BOX(ubox), gps->ui.gps_log_interval_slider,
TRUE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(lbox), ubox, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(ubox), gps->ui.gps_log_interval_slider,
TRUE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(lbox), ubox, FALSE, FALSE, 0);