diff --git a/gui/dialogs/weather_scenario.xml b/gui/dialogs/weather_scenario.xml
index d18e9e217..9c8ca1a5a 100644
--- a/gui/dialogs/weather_scenario.xml
+++ b/gui/dialogs/weather_scenario.xml
@@ -49,6 +49,10 @@
       <command>dialog-apply</command>
       <object-name>source-selection</object-name>
     </binding>
+    <binding>
+      <command>dialog-update</command>
+      <object-name>metar</object-name>
+    </binding>
   </combo>
 
   <textbox>
@@ -81,7 +85,7 @@
     <slider>20</slider>
     <editable>true</editable>
     <wrap>true</wrap>
-    <live>true</live>
+    <live>false</live>
     <property>sim/gui/dialogs/weather-scenario/metar</property>
   </textbox>
 
@@ -165,7 +169,7 @@
           if( src[i] == `\n` or src[i] == `\r` )
             src[i] = ` `;
 
-          if( i != 0 and src[i] == 32 and src[i-1] == 32 )
+          if( i != 0 and src[i] == ` ` and src[i-1] == ` ` )
             continue;
 
           dst = dst ~ " ";
@@ -186,6 +190,17 @@
         return nil;
       }
 
+      var findElementByName = func(rootN, name) {
+        foreach( var child; rootN.getChildren() ) {
+          var n = child.getNode( "name" );
+          if( n != nil and n.getValue() == name )
+            return child;
+          var f = findElementByName(child,name);
+          if( f != nil ) return f;
+        }
+        return nil;
+      };
+
       var propertyChangeListener = setlistener( "sim/gui/dialogs/weather-scenario/source-selection", func(n) {
         description = "";
         metar = "nil";
@@ -209,17 +224,6 @@
       setprop( "sim/gui/dialogs/weather-scenario/metar", normalize_string(getprop("environment/metar/data")) );
 
 
-      var findElementByName = func(rootN, name) {
-        foreach( var child; rootN.getChildren() ) {
-          var n = child.getNode( "name" );
-          if( n != nil and n.getValue() == name )
-            return child;
-          var f = findElementByName(child,name);
-          if( f != nil ) return f;
-        }
-        return nil;
-      };
-
       # fill the METAR source combo box
       var combo = findElementByName( dlg_root, "source-selection" );
       var wsn = props.globals.getNode( "/environment/weather-scenarios" );