diff --git a/Moose Development/Moose/Core/RadioQueue.lua b/Moose Development/Moose/Core/RadioQueue.lua
index 7ee3c02ae..756b5a967 100644
--- a/Moose Development/Moose/Core/RadioQueue.lua	
+++ b/Moose Development/Moose/Core/RadioQueue.lua	
@@ -351,13 +351,21 @@ function RADIOQUEUE:Broadcast(transmission)
       self.senderinit=true
     end
     
+    -- Set subtitle only if duration>0 sec.
+    local subtitle=nil
+    local duration=nil
+    if transmission.subtitle and transmission.subduration and transmission.subduration>0 then
+      subtitle=transmission.subtitle
+      duration=transmission.subduration
+    end
+    
     -- Command to tranmit the call.
     local commandTransmit={
       id = "TransmitMessage",
       params = {
         file=filename,
-        duration=transmission.subduration,
-        subtitle=transmission.subtitle or "",
+        duration=duration,
+        subtitle=subtitle,
         loop=false,
       }}    
     
diff --git a/Moose Development/Moose/Ops/ATIS.lua b/Moose Development/Moose/Ops/ATIS.lua
index dfd9fbebe..7dbb616dd 100644
--- a/Moose Development/Moose/Ops/ATIS.lua	
+++ b/Moose Development/Moose/Ops/ATIS.lua	
@@ -130,6 +130,7 @@
 -- **Note** that you should use a different relay unit for each ATIS!
 --
 -- By default, subtitles are displayed for 10 seconds. This can be changed using @{#ATIS.SetSubtitleDuration}(*duration*) with *duration* being the duration in seconds.
+-- Setting a *duration* of 0 will completely disable all subtitles.
 --
 -- ## Active Runway
 --
@@ -523,7 +524,7 @@ _ATIS={}
 
 --- ATIS class version.
 -- @field #string version
-ATIS.version="0.6.3"
+ATIS.version="0.6.4"
 
 -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 -- TODO list
@@ -1537,6 +1538,7 @@ function ATIS:onafterBroadcast(From, Event, To)
   -- Runway length.
   if self.rwylength then
 
+    local runact=self.airbase:GetActiveRunway(self.runwaym2t)
     local length=runact.length
     if not self.metric then
       length=UTILS.MetersToFeet(length)
diff --git a/Moose Development/Moose/Utilities/Utils.lua b/Moose Development/Moose/Utilities/Utils.lua
index 7346dcc38..d31ae647a 100644
--- a/Moose Development/Moose/Utilities/Utils.lua	
+++ b/Moose Development/Moose/Utilities/Utils.lua	
@@ -474,8 +474,11 @@ UTILS.tostringMGRS = function(MGRS, acc) --R2.1
   if acc == 0 then
     return MGRS.UTMZone .. ' ' .. MGRS.MGRSDigraph
   else
-    return MGRS.UTMZone .. ' ' .. MGRS.MGRSDigraph .. ' ' .. string.format('%0' .. acc .. 'd', UTILS.Round(MGRS.Easting/(10^(5-acc)), 0))
-           .. ' ' .. string.format('%0' .. acc .. 'd', UTILS.Round(MGRS.Northing/(10^(5-acc)), 0))
+    --return MGRS.UTMZone .. ' ' .. MGRS.MGRSDigraph .. ' ' .. string.format('%0' .. acc .. 'd', UTILS.Round(MGRS.Easting/(10^(5-acc)), 0))
+    --       .. ' ' .. string.format('%0' .. acc .. 'd', UTILS.Round(MGRS.Northing/(10^(5-acc)), 0))
+    
+    -- Truncate rather than round MGRS grid!        
+    return string.format("%s %s %s %s", MGRS.UTMZone, MGRS.MGRSDigraph, string.sub(tostring(MGRS.Easting), 1, acc), string.sub(tostring(MGRS.Northing), 1, acc))
   end
 end
 
diff --git a/Moose Development/Moose/Wrapper/Airbase.lua b/Moose Development/Moose/Wrapper/Airbase.lua
index 541412c3b..ccfbc5a59 100644
--- a/Moose Development/Moose/Wrapper/Airbase.lua	
+++ b/Moose Development/Moose/Wrapper/Airbase.lua	
@@ -352,7 +352,13 @@ function AIRBASE:Register( AirbaseName )
   local self = BASE:Inherit( self, POSITIONABLE:New( AirbaseName ) ) --#AIRBASE
   self.AirbaseName = AirbaseName
   self.AirbaseID   = self:GetID(true)
-  self.AirbaseZone = ZONE_RADIUS:New( AirbaseName, self:GetVec2(), 2500 )
+  local vec2=self:GetVec2()
+  if vec2 then
+    self.AirbaseZone = ZONE_RADIUS:New( AirbaseName, vec2, 2500 )
+  else
+    self:E(string.format("ERROR: Cound not get position Vec2 of airbase %s", AirbaseName))
+  end
+  
   return self
 end
 
@@ -450,7 +456,7 @@ function AIRBASE:GetID(unique)
     
   else
   
-   for DCSAirbaseId, DCSAirbase in pairs(world.getAirbases()) do
+   for DCSAirbaseId, DCSAirbase in ipairs(world.getAirbases()) do
    
       -- Get the airbase name.
       local AirbaseName = DCSAirbase:getName()
@@ -458,8 +464,12 @@ function AIRBASE:GetID(unique)
       -- This gives the incorrect value to be inserted into the airdromeID for DCS 2.5.6!
       local airbaseID=tonumber(DCSAirbase:getID())
       
+      local airbaseCategory=self:GetAirbaseCategory()
+      
+      --env.info(string.format("FF airbase=%s id=%s category=%s", tostring(AirbaseName), tostring(airbaseID), tostring(airbaseCategory)))
+      
       -- No way AFIK to get the DCS version. So we check if the event exists. That should tell us if we are on DCS 2.5.6 or prior to that.
-      if world.event.S_EVENT_KILL and world.event.S_EVENT_KILL>0 and self:GetAirbaseCategory()==Airbase.Category.AIRDROME then
+      if world.event.S_EVENT_KILL and world.event.S_EVENT_KILL>0 and airbaseCategory==Airbase.Category.AIRDROME then
       
         -- We have to take the key value of this loop!
         airbaseID=DCSAirbaseId
@@ -471,7 +481,7 @@ function AIRBASE:GetID(unique)
       end
       
       if AirbaseName==self.AirbaseName then
-        if self:GetAirbaseCategory()==Airbase.Category.SHIP then
+        if airbaseCategory==Airbase.Category.SHIP then
           -- Ships get a negative sign as their unit number might be the same as the ID of another airbase.
           return unique and -airbaseID or airbaseID
         else
@@ -1011,7 +1021,15 @@ end
 -- @param #AIRBASE self
 -- @return #number Category of airbase from GetDesc().category.
 function AIRBASE:GetAirbaseCategory()
-  return self:GetDesc().category
+  local desc=self:GetDesc()
+  local category=Airbase.Category.AIRDROME
+
+  if desc and desc.category then
+    category=desc.category
+  else
+    self:E(string.format("ERROR: Cannot get category of airbase %s due to DCS 2.5.6 bug! Assuming it is an AIRDROME for now...", tostring(self.AirbaseName)))
+  end
+  return category
 end