3 files changed, 6 insertions, 1 deletions

diff --git a/OpenSim/Region/Application/Application.cs b/OpenSim/Region/Application/Application.cs
index ebfebc4..78636c4 100644
--- a/OpenSim/Region/Application/Application.cs
+++ b/OpenSim/Region/Application/Application.cs
@@ -27,6 +27,7 @@
 
 using System;
 using System.IO;
+using System.Net;
 using System.Reflection;
 using log4net;
 using log4net.Config;
@@ -73,6 +74,7 @@ namespace OpenSim
             AppDomain.CurrentDomain.UnhandledException +=
                 new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
 
+            ServicePointManager.DefaultConnectionLimit = 6;
 
             // Add the arguments supplied when running the application to the configuration
             ArgvConfigSource configSource = new ArgvConfigSource(args);
diff --git a/OpenSim/Region/CoreModules/Avatar/InstantMessage/MessageTransferModule.cs b/OpenSim/Region/CoreModules/Avatar/InstantMessage/MessageTransferModule.cs
index 1406aae..0c067d7 100644
--- a/OpenSim/Region/CoreModules/Avatar/InstantMessage/MessageTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/InstantMessage/MessageTransferModule.cs
@@ -137,6 +137,9 @@ namespace OpenSim.Region.CoreModules.Avatar.InstantMessage
         {
             UUID toAgentID = new UUID(im.toAgentID);
 
+            if (toAgentID == UUID.Zero)
+                return;
+
             // Try root avatar only first
             foreach (Scene scene in m_Scenes)
             {
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index d5e611c..f9b4bfd 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -3420,7 +3420,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public void llInstantMessage(string user, string message)
         {
             UUID result;
-            if (!UUID.TryParse(user, out result))
+            if (!UUID.TryParse(user, out result) || result == UUID.Zero)
             {
                 ShoutError("An invalid key  was passed to llInstantMessage");
                 ScriptSleep(2000);