more color/modifier tweaks

[ardour.git] / gtk2_ardour / ardour_ui_options.cc

diff --git a/gtk2_ardour/ardour_ui_options.cc b/gtk2_ardour/ardour_ui_options.cc
index a8be3ccd0cfb63b56c7579840fc38651344370e3..f0ec519775ead8dd10baa5d20564d8910b5e72f4 100644 (file)
--- a/gtk2_ardour/ardour_ui_options.cc
+++ b/gtk2_ardour/ardour_ui_options.cc
@@ -392,8 +392,10 @@ ARDOUR_UI::parameter_changed (std::string p)
                        secondary_clock->set_widget_name ("secondary");
                }
        } else if (p == "super-rapid-clock-update") {
-               stop_clocking ();
-               start_clocking ();
+               if (_session) {
+                       stop_clocking ();
+                       start_clocking ();
+               }
        } else if (p == "waveform-gradient-depth") {
                ArdourCanvas::WaveView::set_global_gradient_depth (config()->get_waveform_gradient_depth());
        } else if (p == "show-editor-meter") {