diff --git a/preferences.xml b/preferences.xml
index c44c8c0da..b01ed3e50 100644
--- a/preferences.xml
+++ b/preferences.xml
@@ -1,173 +1,186 @@
-<?xml version="1.0"?>
-
-<!--
-************************************************************************
-Global defaults for FlightGear property values.
-
-Started September 2000 by David Megginson, david@megginson.com
-************************************************************************
--->
-
-<PropertyList>
-
- <!-- General simulation preferences -->
-
- <sim>
-  <startup>
-   <xsize>800</xsize>
-   <ysize>600</ysize>
-   <trim>true</trim>
-   <splash-screen>true</splash-screen>
-   <intro-music>true</intro-music>
-   <game-mode>false</game-mode>
-   <airport-id>KSFO</airport-id>
-   <fullscreen>false</fullscreen>
-   <units>feet</units>
-   <browser-app>konqueror</browser-app><!--  help viewer -->
-  </startup>
-  <flight-model>jsb</flight-model>
-  <aircraft>c172</aircraft>
-  <model-hz>120</model-hz>
-  <sound>true</sound>
-  <speed-up>1.0</speed-up>
-  <field-of-view>55.0</field-of-view>
-  <panel>
-   <path>Aircraft/c172/Panels/c172-vfr-panel.xml</path>
-<!--   <y-offset>-305</y-offset> -->
-   <visibility>true</visibility>
-  </panel>
-  <panel_2>
-   <path>Aircraft/c172/Panels/c172-trans-mini-panel.xml</path>
-<!--   <y-offset>-305</y-offset> -->
-   <visibility>true</visibility>
-  </panel_2>
-  <hud>
-   <path>Huds/Default/default.xml</path>
-   <visibility>false</visibility>
-  </hud>
-  <instrument-options>
-   <nav n="0">
-   <has-gs-needle>1</has-gs-needle>
-   <needles-pivot>1</needles-pivot>
-   </nav>
-   <nav n="1">
-   <has-gs-needle>0</has-gs-needle>
-   <needles-pivot>1</needles-pivot>
-   </nav>
-   <hsi n="0">
-   <has-gs-needle>1</has-gs-needle>
-   </hsi>
-   <dg>
-    <style>0</style>
-   </dg>
-  </instrument-options>
-  </sim>
-
-
- <!-- Position -->
-
- <position>
-  <!-- <longitude-deg>-110.6642444</longitude-deg> -->
-  <!-- <latitude-deg>33.3528917</latitude-deg> -->
-  <altitude-ft>-9999</altitude-ft>
- </position>
-
-
- <!-- Velocities -->
-
- <velocities>
-  <speed-north-fps>0.0</speed-north-fps>
-  <speed-east-fps>0.0</speed-east-fps>
-  <speed-down-fps>0.0</speed-down-fps>
- </velocities>
-
-
- <!-- Orientation -->
-
- <orientation>
-  <heading-deg>270</heading-deg>
-  <roll-deg>0.0</roll-deg>
-  <pitch-deg>0.424</pitch-deg>
- </orientation>
-
-
- <!-- Environment -->
-
- <environment>
-  <visibility-m>16000</visibility-m>
- </environment>
-
- <!-- Engine -->
- <engines>
-  <engine>
-   <magneto>0.0</magneto>
-  </engine>
- </engines>
-
-
- <!-- Controls -->
-
- <controls>
-  <mixture>1.0</mixture>
- </controls>
-
-
- <!-- User input devices -->
-
- <input>
-
-  <!-- included externally -->
-  <keyboard include="keyboard.xml"/>
-
-  <!-- included externally -->
-  <joysticks include="joysticks.xml"/>
-
- </input>
-
-
- <!-- Radio settings -->
-
- <radios>
-
-  <nav n="0">
-   <frequencies>
-    <selected-mhz>117.3</selected-mhz>
-    <standby-mhz>110.3</standby-mhz>
-   </frequencies>
-   <radials>
-    <selected-deg>119.0</selected-deg>
-   </radials>
-  </nav>
-
-  <nav n="1">
-   <frequencies>
-    <selected-mhz>111.80</selected-mhz>
-    <standby-mhz>115.70</standby-mhz>
-   </frequencies>
-   <radials>
-    <selected-deg>029.0</selected-deg>
-   </radials>
-  </nav>
-
-  <adf>
-   <frequencies>
-    <selected-khz>266.0</selected-khz>
-    <standby-khz>300.0</standby-khz>
-   </frequencies>
-   <rotation-deg>90</rotation-deg>
-  </adf>
-
- </radios>
-
- <!-- Instruments -->
-
- <!-- this is here because the datum isn't retained on a reset -->
-
- <steam>
-   <altimeter-datum-mb>1013.25</altimeter-datum-mb>
- </steam>
-
- </PropertyList>
-
-<!-- end of preferences.xml -->
-
+<?xml version="1.0"?>
+
+<!--
+************************************************************************
+Global defaults for FlightGear property values.
+
+Started September 2000 by David Megginson, david@megginson.com
+************************************************************************
+-->
+
+<PropertyList>
+
+ <!-- General simulation preferences -->
+
+ <sim>
+  <startup>
+   <xsize>800</xsize>
+   <ysize>600</ysize>
+   <splash-screen>true</splash-screen>
+   <intro-music>true</intro-music>
+   <game-mode>false</game-mode>
+   <airport-id>KSFO</airport-id>
+   <fullscreen>false</fullscreen>
+   <units>feet</units>
+  <browser-app>konqueror</browser-app><!--  help viewer -->
+  </startup>
+  <flight-model>jsb</flight-model>
+  <aircraft>c172</aircraft>
+  <model-hz>120</model-hz>
+  <sound>true</sound>
+  <speed-up>1.0</speed-up>
+  <field-of-view>55.0</field-of-view>
+  <panel>
+   <path>Aircraft/c172/Panels/c172-vfr-panel.xml</path>
+<!--   <y-offset>-305</y-offset> -->
+   <visibility>true</visibility>
+  </panel>
+  <panel_2>
+   <path>Aircraft/c172/Panels/c172-trans-mini-panel.xml</path>
+<!--   <y-offset>-305</y-offset> -->
+   <visibility>true</visibility>
+  </panel_2>
+  <hud>
+   <path>Huds/Default/default.xml</path>
+   <visibility>false</visibility>
+  </hud>
+  <instrument-options>
+   <nav n="0">
+   <has-gs-needle>1</has-gs-needle>
+   <needles-pivot>1</needles-pivot>
+   </nav>
+   <nav n="1">
+   <has-gs-needle>0</has-gs-needle>
+   <needles-pivot>1</needles-pivot>
+   </nav>
+   <hsi n="0">
+   <has-gs-needle>1</has-gs-needle>
+   </hsi>
+   <dg>
+    <style>0</style>
+   </dg>
+  </instrument-options>
+  </sim>
+
+
+ <!-- Position -->
+
+ <position>
+  <!-- <longitude-deg>-110.6642444</longitude-deg> -->
+  <!-- <latitude-deg>33.3528917</latitude-deg> -->
+  <altitude-ft>-9999</altitude-ft>
+ </position>
+
+
+ <!-- Velocities -->
+
+ <velocities>
+  <speed-north-fps>0.0</speed-north-fps>
+  <speed-east-fps>0.0</speed-east-fps>
+  <speed-down-fps>0.0</speed-down-fps>
+ </velocities>
+
+
+ <!-- Orientation -->
+
+ <orientation>
+  <heading-deg>270</heading-deg>
+  <roll-deg>0.0</roll-deg>
+  <pitch-deg>0.424</pitch-deg>
+ </orientation>
+
+
+ <!-- Environment -->
+
+ <environment>
+  <visibility-m>16000</visibility-m>
+ </environment>
+
+ <!-- Engine -->
+ <engines>
+  <engine>
+   <magneto>0.0</magneto>
+  </engine>
+ </engines>
+
+
+ <!-- Controls -->
+
+ <controls>
+  <mixture>1.0</mixture>
+ </controls>
+
+
+ <!-- User input devices -->
+
+ <input>
+
+  <!-- included externally -->
+  <keyboard include="keyboard.xml"/>
+
+  <!-- included externally -->
+  <joysticks include="joysticks.xml"/>
+
+ </input>
+
+
+ <!-- Radio settings -->
+
+ <radios>
+
+  <comm n="0">
+   <frequencies>
+    <selected-mhz>117.4</selected-mhz>
+    <standby-mhz>115.8</standby-mhz>
+   </frequencies>
+  </comm>
+
+  <comm n="1">
+   <frequencies>
+    <selected-mhz>111.80</selected-mhz>
+    <standby-mhz>115.70</standby-mhz>
+   </frequencies>
+  </comm>
+
+  <nav n="0">
+   <frequencies>
+    <selected-mhz>117.3</selected-mhz>
+    <standby-mhz>110.3</standby-mhz>
+   </frequencies>
+   <radials>
+    <selected-deg>119.0</selected-deg>
+   </radials>
+  </nav>
+
+  <nav n="1">
+   <frequencies>
+    <selected-mhz>111.80</selected-mhz>
+    <standby-mhz>115.70</standby-mhz>
+   </frequencies>
+   <radials>
+    <selected-deg>029.0</selected-deg>
+   </radials>
+  </nav>
+
+  <adf>
+   <frequencies>
+    <selected-khz>266.0</selected-khz>
+    <standby-khz>300.0</standby-khz>
+   </frequencies>
+   <rotation-deg>90</rotation-deg>
+  </adf>
+
+ </radios>
+
+ <!-- Instruments -->
+
+ <!-- this is here because the datum isn't retained on a reset -->
+
+ <steam>
+   <altimeter-datum-mb>1013.25</altimeter-datum-mb>
+ </steam>
+
+ </PropertyList>
+
+<!-- end of preferences.xml -->
+