fix sensitivity of engine dialog driver_combo.

diff --git a/gtk2_ardour/engine_dialog.cc b/gtk2_ardour/engine_dialog.cc
index 715083698940ff8b60113327eff086aaca785b4f..e3d40702ef7a73464c46ff47fc7f8a73eedafa7f 100644 (file)
--- a/gtk2_ardour/engine_dialog.cc
+++ b/gtk2_ardour/engine_dialog.cc
@@ -652,6 +652,7 @@ EngineControl::EngineControl ()
 
         if (backend->requires_driver_selection()) {
                 vector<string> drivers = backend->enumerate_drivers();
+                driver_combo.set_sensitive (true);
 
                 if (!drivers.empty()) {
                         {