diff --git a/Tools/ArdupilotMegaPlanner/MAVLink.cs b/Tools/ArdupilotMegaPlanner/MAVLink.cs
index eb03f48600..8066c903ec 100644
--- a/Tools/ArdupilotMegaPlanner/MAVLink.cs
+++ b/Tools/ArdupilotMegaPlanner/MAVLink.cs
@@ -1865,7 +1865,7 @@ namespace ArdupilotMega
             int readcount = 0;
             lastbad = new byte[2];
 
-            BaseStream.ReadTimeout = 500; // 500 ms between chars
+            BaseStream.ReadTimeout = 1200; // 1200 ms between chars - the gps detection requires this.
 
             DateTime start = DateTime.Now;
 
diff --git a/Tools/ArdupilotMegaPlanner/Properties/AssemblyInfo.cs b/Tools/ArdupilotMegaPlanner/Properties/AssemblyInfo.cs
index 65f82186b9..de938bd33c 100644
--- a/Tools/ArdupilotMegaPlanner/Properties/AssemblyInfo.cs
+++ b/Tools/ArdupilotMegaPlanner/Properties/AssemblyInfo.cs
@@ -34,5 +34,5 @@ using System.Resources;
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
 [assembly: AssemblyVersion("1.0.0.0")]
-[assembly: AssemblyFileVersion("1.1.38")]
+[assembly: AssemblyFileVersion("1.1.39")]
 [assembly: NeutralResourcesLanguageAttribute("")]
diff --git a/Tools/ArdupilotMegaPlanner/bin/Release/ArdupilotMegaPlanner.pdb b/Tools/ArdupilotMegaPlanner/bin/Release/ArdupilotMegaPlanner.pdb
index 1dad1a88d5..f8684ba06d 100644
Binary files a/Tools/ArdupilotMegaPlanner/bin/Release/ArdupilotMegaPlanner.pdb and b/Tools/ArdupilotMegaPlanner/bin/Release/ArdupilotMegaPlanner.pdb differ