diff --git a/Data/AI/thunderstorm_demo.xml b/Data/AI/thunderstorm_demo.xml
index 81ada162c..4cfb04baf 100644
--- a/Data/AI/thunderstorm_demo.xml
+++ b/Data/AI/thunderstorm_demo.xml
@@ -6,7 +6,7 @@
 
   <!-- Puts a thunderstorm southwest of KSFO -->
   <entry>
-   <type>storm</type>
+   <type>thunderstorm</type>
    <model>Models/Geometry/thunderstorm.xml</model>
    <latitude>37.44</latitude>
    <longitude>-122.25</longitude>
@@ -17,4 +17,4 @@
 
  </scenario>
 
-</PropertyList>
\ No newline at end of file
+</PropertyList>
diff --git a/preferences.xml b/preferences.xml
index ed3f8df69..6c91599a8 100644
--- a/preferences.xml
+++ b/preferences.xml
@@ -53,7 +53,7 @@ Started September 2000 by David Megginson, david@megginson.com
   </navdb>
   <sound>
    <pause type="bool">false</pause>
-   <volume type="double">1.0</volume>
+   <volume type="double">0.0</volume>
    <voice type="bool">true</voice>
   </sound>
   <speed-up type="double">1.0</speed-up>
@@ -285,7 +285,7 @@ Started September 2000 by David Megginson, david@megginson.com
   </traffic-manager>
 
   <ai>
-   <enabled type="bool">false</enabled>
+   <enabled type="bool">true</enabled>
    <!-- <scenario>aircraft_demo</scenario> -->
   </ai>