diff --git a/Nasal/lead_target.nas b/Nasal/lead_target.nas
index 7bc335382..dd01f4c58 100644
--- a/Nasal/lead_target.nas
+++ b/Nasal/lead_target.nas
@@ -402,12 +402,17 @@ LeadTargetUpdate = func {
 
 
 select_task_dialog = func {
-    var dlg = props.globals.getNode("/sim/gui/dialogs/NTPS/config/dialog", 1);
-    gui.loadXMLDialog(dlg, "gui/dialogs/NTPS_target_task.xml");
-    fgcommand("dialog-show", dlg);
+    dialog.load();  # load every time?
+    dialog.open();
 }
 
 
+var dialog = nil;
+settimer(func {
+    dialog = gui.Dialog.new("/sim/gui/dialogs/NTPS/config/dialog", "gui/dialogs/NTPS_target_task.xml");
+}, 0);
+
+
 # timer handling to cause our update function to be called periodially
 registerTimer = func {
     settimer(LeadTargetUpdate, update_period );