diff --git a/OpenSim/Region/CoreModules/Avatar/AvatarFactory/AvatarFactoryModule.cs b/OpenSim/Region/CoreModules/Avatar/AvatarFactory/AvatarFactoryModule.cs
index d6ddc3c337..c18f00affe 100644
--- a/OpenSim/Region/CoreModules/Avatar/AvatarFactory/AvatarFactoryModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/AvatarFactory/AvatarFactoryModule.cs
@@ -254,8 +254,6 @@ namespace OpenSim.Region.CoreModules.Avatar.AvatarFactory
         /// </summary>
         public void QueueAppearanceSend(UUID agentid)
         {
-            // m_log.WarnFormat("[AVFACTORY]: Queue appearance send for {0}", agentid);
-
             // 10000 ticks per millisecond, 1000 milliseconds per second
             long timestamp = DateTime.Now.Ticks + Convert.ToInt64(m_sendtime * 1000 * 10000);
             lock (m_sendqueue)
@@ -263,7 +261,7 @@ namespace OpenSim.Region.CoreModules.Avatar.AvatarFactory
                 m_sendqueue[agentid] = timestamp;
                 m_updateTimer.Start();
             }
-            m_log.WarnFormat("[AVFACTORY]: Queue appearance send for {0} at {1} (now is {2})", agentid, timestamp,DateTime.Now.Ticks);
+            //m_log.DebugFormat("[AVFACTORY]: Queue appearance send for {0} at {1} (now is {2})", agentid, timestamp,DateTime.Now.Ticks);
         }
 
         public void QueueAppearanceSave(UUID agentid)
@@ -382,7 +380,7 @@ namespace OpenSim.Region.CoreModules.Avatar.AvatarFactory
                 {
                     if (kvp.Value < now)
                     {
-                        m_log.WarnFormat("[AVFACTORY]: send appearance for {0} at time {1}", kvp.Key, now);
+                        m_log.DebugFormat("[AVFACTORY]: send appearance for {0} at time {1}", kvp.Key, now);
                         Util.FireAndForget(delegate(object o) { HandleAppearanceSend(kvp.Key); });
                         m_sendqueue.Remove(kvp.Key);
                     }
diff --git a/OpenSim/Region/CoreModules/RegionSync/RegionSyncModule/RegionSyncClient.cs b/OpenSim/Region/CoreModules/RegionSync/RegionSyncModule/RegionSyncClient.cs
index 3040866e46..8777bcc134 100644
--- a/OpenSim/Region/CoreModules/RegionSync/RegionSyncModule/RegionSyncClient.cs
+++ b/OpenSim/Region/CoreModules/RegionSync/RegionSyncModule/RegionSyncClient.cs
@@ -770,11 +770,13 @@ namespace OpenSim.Region.CoreModules.RegionSync.RegionSyncModule
                                 sp.ControllingClient.SendAnimations(animIDs, seqs, sourceAgentID, objectIDs);
                             }
                         }
+                        /*
                         else
                         {
                             m_log.WarnFormat("{0} Could not send animation for {1} because scene presence not found",
                                 LogHeader(), agentID.ToString());
                         }
+                        */
                         return;
                     }
                 case RegionSyncMessage.MsgType.BalanceClientLoad:
diff --git a/OpenSim/Region/CoreModules/RegionSync/RegionSyncModule/RegionSyncServerModule.cs b/OpenSim/Region/CoreModules/RegionSync/RegionSyncModule/RegionSyncServerModule.cs
index be029d4687..ba5c7efca5 100644
--- a/OpenSim/Region/CoreModules/RegionSync/RegionSyncModule/RegionSyncServerModule.cs
+++ b/OpenSim/Region/CoreModules/RegionSync/RegionSyncModule/RegionSyncServerModule.cs
@@ -282,7 +282,7 @@ namespace OpenSim.Region.CoreModules.RegionSync.RegionSyncModule
             // Existing value of 1 indicates that updates are currently being sent so skip updates this pass
             if (Interlocked.Exchange(ref m_sendingUpdates, 1) == 1)
             {
-                m_log.WarnFormat("[REGION SYNC SERVER MODULE] SendUpdates(): An update thread is already running.");
+                m_log.DebugFormat("[REGION SYNC SERVER MODULE] SendUpdates(): An update thread is already running.");
                 return;
             }
 
diff --git a/OpenSim/Region/CoreModules/RegionSync/RegionSyncModule/SymmetricSync/RegionSyncModule.cs b/OpenSim/Region/CoreModules/RegionSync/RegionSyncModule/SymmetricSync/RegionSyncModule.cs
index 318efda12f..1d3219c90c 100644
--- a/OpenSim/Region/CoreModules/RegionSync/RegionSyncModule/SymmetricSync/RegionSyncModule.cs
+++ b/OpenSim/Region/CoreModules/RegionSync/RegionSyncModule/SymmetricSync/RegionSyncModule.cs
@@ -213,7 +213,7 @@ namespace OpenSim.Region.CoreModules.RegionSync.RegionSyncModule
             // Existing value of 1 indicates that updates are currently being sent so skip updates this pass
             if (Interlocked.Exchange(ref m_sendingUpdates, 1) == 1)
             {
-                m_log.WarnFormat("[REGION SYNC MODULE] SendUpdates(): An update thread is already running.");
+                m_log.DebugFormat("[REGION SYNC MODULE] SendUpdates(): An update thread is already running.");
                 return;
             }
 
diff --git a/OpenSim/Services/Connectors/SimianGrid/SimianGridServiceConnector.cs b/OpenSim/Services/Connectors/SimianGrid/SimianGridServiceConnector.cs
index d535bb4754..682ab0e042 100644
--- a/OpenSim/Services/Connectors/SimianGrid/SimianGridServiceConnector.cs
+++ b/OpenSim/Services/Connectors/SimianGrid/SimianGridServiceConnector.cs
@@ -434,6 +434,12 @@ namespace OpenSim.Services.Connectors.SimianGrid
         }
 
         #region SYNC SERVER
+        /// <summary>
+        /// Register the SyncServerID, address and port for a particular endpoint.
+        /// The internal address and port are not registered.
+        /// </summary>
+        /// <param name="gei"></param>
+        /// <returns>'true' if the registration was successful and 'false' otherwise</returns>
         public virtual bool RegisterEndpoint(GridEndpointInfo gei)
         {
             NameValueCollection requestArgs = new NameValueCollection
@@ -456,6 +462,42 @@ namespace OpenSim.Services.Connectors.SimianGrid
             return false;
         }
 
+        /// <summary>
+        /// Lookup a particular endpoint given the SyncServerID of the endpoint.
+        /// </summary>
+        /// <param name="syncServerID"></param>
+        /// <returns>endpoint information or 'null' if not found</returns>
+        public virtual GridEndpointInfo LookupEndpoint(string syncServerID)
+        {
+            NameValueCollection requestArgs = new NameValueCollection
+            {
+                { "RequestMethod", "GetEndpoint" },
+                { "SyncServerID", syncServerID },
+            };
+
+            OSDMap response = WebUtil.PostToService(m_ServerURI, requestArgs);
+            if (response["Success"].AsBoolean())
+            {
+                GridEndpointInfo gai = new GridEndpointInfo();
+                gai.syncServerID = response["SyncServerID"].AsString();
+                gai.address = response["Address"].AsString();
+                gai.port = (uint)response["Port"].AsInteger();
+                gai.internalAddress = response["InternalAddress"].AsString();
+                gai.internalPort = (uint)response["InternalPort"].AsInteger();
+                return gai;
+            }
+            m_log.ErrorFormat("{0}: Lookup of endpoint failed: {1}",
+                        "[SIMIAN GRID CONNECTOR]", response["Message"]);
+            return null;
+        }
+
+        /// <summary>
+        /// Register an actor association with a SyncServer.
+        /// </summary>
+        /// <param name="actorID">unique identification of the actor (actor's "name")</param>
+        /// <param name="actorType">actor type identification string</param>
+        /// <param name="syncServerID">sync server identification</param>
+        /// <returns>'true' if registration successful. 'false' otherwise</returns>
         public virtual bool RegisterActor(string actorID, string actorType, string syncServerID)
         {
             NameValueCollection requestArgs = new NameValueCollection
@@ -479,6 +521,13 @@ namespace OpenSim.Services.Connectors.SimianGrid
             return false;
         }
 
+        /// <summary>
+        /// Register a quark on a SyncServer.
+        /// </summary>
+        /// <param name="syncServerID"></param>
+        /// <param name="locX"></param>
+        /// <param name="locY"></param>
+        /// <returns>'true' if registration successful. 'false' otherwise</returns>
         public virtual bool RegisterQuark(string syncServerID, uint locX, uint locY)
         {
             NameValueCollection requestArgs = new NameValueCollection
@@ -501,6 +550,12 @@ namespace OpenSim.Services.Connectors.SimianGrid
             return false;
         }
 
+        /// <summary>
+        /// Given a quark location, return all the endpoints associated with that quark;
+        /// </summary>
+        /// <param name="locX">quark home X location</param>
+        /// <param name="locY">quark home Y location</param>
+        /// <returns>list of endpoints and actor types associated with the quark</returns>
         public virtual List<GridEndpointInfo> LookupQuark(uint locX, uint locY)
         {
             NameValueCollection requestArgs = new NameValueCollection
@@ -512,6 +567,15 @@ namespace OpenSim.Services.Connectors.SimianGrid
             return LookupQuark(requestArgs);
         }
 
+        /// <summary>
+        /// Given a quark location and an actor type, return all endpoints associated with
+        /// the quark that have that actor. This is equivilent to the previous request but
+        /// filtered by the actor type.
+        /// </summary>
+        /// <param name="locX">quark home X location</param>
+        /// <param name="locY">quark home Y location</param>
+        /// <param name="actorType">actor definition string</param>
+        /// <returns>list of endpoints having that actor and the quark</returns>
         public virtual List<GridEndpointInfo> LookupQuark(uint locX, uint locY, string actorType)
         {
             NameValueCollection requestArgs = new NameValueCollection
diff --git a/OpenSim/Services/Connectors/SimianGrid/SimianPresenceServiceConnector.cs b/OpenSim/Services/Connectors/SimianGrid/SimianPresenceServiceConnector.cs
index 678f738abb..6d9f6185ac 100644
--- a/OpenSim/Services/Connectors/SimianGrid/SimianPresenceServiceConnector.cs
+++ b/OpenSim/Services/Connectors/SimianGrid/SimianPresenceServiceConnector.cs
@@ -203,7 +203,11 @@ namespace OpenSim.Services.Connectors.SimianGrid
         public PresenceInfo GetAgent(UUID sessionID)
         {
 //            m_log.DebugFormat("[SIMIAN PRESENCE CONNECTOR]: Requesting session data for agent with sessionID " + sessionID);
-
+            if(sessionID == UUID.Zero)
+            {
+                m_log.Debug("[SIMIAN PRESENCE CONNECTOR]: GetAgent called with UUID.Zero!");
+                return null;
+            }
             NameValueCollection requestArgs = new NameValueCollection
             {
                 { "RequestMethod", "GetSession" },