diff --git a/src/as/com/threerings/crowd/data/OccupantInfo.as b/src/as/com/threerings/crowd/data/OccupantInfo.as
index cd9355b83..808610a95 100644
--- a/src/as/com/threerings/crowd/data/OccupantInfo.as
+++ b/src/as/com/threerings/crowd/data/OccupantInfo.as
@@ -94,7 +94,7 @@ public class OccupantInfo
     // documentation inherited from superinterface Streamable
     public function readObject (ins :ObjectInputStream) :void
     {
-        bodyOid = (ins.readObject() as Integer);
+        bodyOid = (ins.readField(Integer) as Integer);
         username = (ins.readObject() as Name);
         status = ins.readByte();
     }
diff --git a/src/as/com/threerings/io/ObjectInputStream.as b/src/as/com/threerings/io/ObjectInputStream.as
index a1ad22a5e..70c695440 100644
--- a/src/as/com/threerings/io/ObjectInputStream.as
+++ b/src/as/com/threerings/io/ObjectInputStream.as
@@ -31,12 +31,14 @@ public class ObjectInputStream
     public function readObject () :Object
         //throws IOError
     {
+        var DEBUG_ID :String = "[" + (++_tempy) + "] ";
         try {
             // read in the class code for this instance
             var code :int = readShort();
 
             // a zero code indicates a null value
             if (code == 0) {
+                Log.debug(DEBUG_ID + "Read null");
                 return null;
             }
 
@@ -50,7 +52,7 @@ public class ObjectInputStream
 
                 // read in the class metadata
                 var cname :String = Translations.getFromServer(readUTF());
-                Log.debug("read cname: " + cname);
+//                Log.debug("read cname: " + cname);
                 var streamer :Streamer = Streamer.getStreamerByJavaName(cname);
                 if (streamer == Streamer.BAD_STREAMER) {
                     Log.warning("OMG, cannot stream " + cname);
@@ -60,10 +62,11 @@ public class ObjectInputStream
 
                 cmap = new ClassMapping(code, cname, streamer);
                 _classMap[code] = cmap;
-//                Log.debug("Created mapping for (" + code + "): " + cname);
+                Log.debug(DEBUG_ID +
+                    "Created mapping: (" + code + "): " + cname);
 
             } else {
-                Log.debug("Read known code: " + code);
+                Log.debug(DEBUG_ID + "Read known code: (" + code + ")");
                 cmap = (_classMap[code] as ClassMapping);
                 if (null == cmap) {
                     throw new IOError("Read object for which we have no " +
@@ -71,7 +74,7 @@ public class ObjectInputStream
                 }
             }
 
-            Log.debug("Creating object sleeve...");
+//            Log.debug("Creating object sleeve...");
             var target :Object;
             if (cmap.streamer === null) {
                 var clazz :Class = ClassUtil.getClassByName(cmap.classname);
@@ -80,9 +83,9 @@ public class ObjectInputStream
             } else {
                 target = cmap.streamer.createObject(this);
             }
-            Log.debug("Reading object...");
+            //Log.debug("Reading object...");
             readBareObjectImpl(target, cmap.streamer);
-            Log.debug("Read object: " + target);
+            Log.debug(DEBUG_ID + "Read object: " + target);
             return target;
 
         } catch (me :MemoryError) {
@@ -229,5 +232,10 @@ public class ObjectInputStream
 
     /** A map of short class code to ClassMapping info. */
     protected var _classMap :Array = new Array();
+
+
+
+
+    static var _tempy :int = 0;
 }
 }
diff --git a/src/as/com/threerings/io/StreamableArray.as b/src/as/com/threerings/io/StreamableArray.as
deleted file mode 100644
index 9d7114314..000000000
--- a/src/as/com/threerings/io/StreamableArray.as
+++ /dev/null
@@ -1,20 +0,0 @@
-package com.threerings.io {
-
-public dynamic class StreamableArray extends Array
-    implements Streamable
-{
-    public function StreamableArray (ctype :Class = undefined, length :int = 0)
-    {
-        super(length);
-        _ctype = ctype;
-    }
-
-    public function StreamableArray (ctype :Class, ... values)
-    {
-        super(values);
-        _ctype = ctype;
-    }
-
-    /** The type of all the elements in the array. */
-    protected var _ctype :Class;
-}
diff --git a/src/as/com/threerings/presents/client/InvocationDirector.as b/src/as/com/threerings/presents/client/InvocationDirector.as
index a5c0fa10f..12cb2a8d7 100644
--- a/src/as/com/threerings/presents/client/InvocationDirector.as
+++ b/src/as/com/threerings/presents/client/InvocationDirector.as
@@ -152,12 +152,6 @@ public class InvocationDirector
         var event :InvocationRequestEvent =
             new InvocationRequestEvent(invOid, invCode, methodId, args);
 
-        // because invocation directors are used on the server, we set the
-        // source oid here so that invocation requests are properly
-        // attributed to the right client object when created by
-        // server-side entities only sort of pretending to be a client
-        event.setSourceOid(_clobj.getOid());
-
         // now, dispatch the event
         _omgr.postEvent(event);
     }
diff --git a/src/as/com/threerings/presents/dobj/DEvent.as b/src/as/com/threerings/presents/dobj/DEvent.as
index e68bb61b2..fec01fea4 100644
--- a/src/as/com/threerings/presents/dobj/DEvent.as
+++ b/src/as/com/threerings/presents/dobj/DEvent.as
@@ -41,28 +41,6 @@ public /* abstract */ class DEvent
         return false;
     }
 
-    /**
-     * Returns the object id of the client that generated this event. If
-     * the event was generated by the server, the value returned will be
-     * -1. This is not valid on the client, it will return -1 for all
-     * events there (it is primarily provided to allow for event-level
-     * access control).
-     */
-    public function getSourceOid () :int
-    {
-        return _soid;
-    }
-
-    /**
-     * Do not call this method. Sets the source oid of the client that
-     * generated this event. It is automatically called by the client
-     * management code when a client forwards an event to the server.
-     */
-    public function setSourceOid (sourceOid :int) :void
-    {
-        _soid = sourceOid;
-    }
-
     /**
      * We want to make the notifyListener method visible to DObject.
      */
@@ -120,9 +98,6 @@ public /* abstract */ class DEvent
     /** The oid of the object that is the target of this event. */
     protected var _toid :int;
 
-    /** The oid of the client that generated this event. */
-    protected var _soid :int = -1;
-
     protected static const UNSET_OLD_ENTRY :DSetEntry = new DummyEntry();
 }
 }
diff --git a/src/as/com/threerings/presents/dobj/DObject.as b/src/as/com/threerings/presents/dobj/DObject.as
index 15ee47033..67d28ee20 100644
--- a/src/as/com/threerings/presents/dobj/DObject.as
+++ b/src/as/com/threerings/presents/dobj/DObject.as
@@ -103,6 +103,7 @@ public class DObject // extends EventDispatcher
 
     public function postMessage (name :String, args :Array) :void
     {
+        trace("posting message: " + name + ", " + args);
         postEvent(new MessageEvent(_oid, name, args));
     }
 
@@ -242,7 +243,7 @@ public class DObject // extends EventDispatcher
     protected function requestEntryAdd (name :String, entry :DSetEntry) :void
     {
         // dispatch an entry added event
-        postEvent(new EntryAddedEvent(_oid, name, entry, false));
+        postEvent(new EntryAddedEvent(_oid, name, entry));
     }
 
     /**
diff --git a/src/as/com/threerings/presents/dobj/EntryAddedEvent.as b/src/as/com/threerings/presents/dobj/EntryAddedEvent.as
index d78dab39f..d42696cdc 100644
--- a/src/as/com/threerings/presents/dobj/EntryAddedEvent.as
+++ b/src/as/com/threerings/presents/dobj/EntryAddedEvent.as
@@ -27,7 +27,7 @@ public class EntryAddedEvent extends NamedEvent
      * @param entry the entry to add to the set attribute.
      */
     public function EntryAddedEvent (
-            targetOid :int, name :String, entry :DSetEntry)
+            targetOid :int = 0, name :String = null, entry :DSetEntry = null)
     {
         super(targetOid, name);
         _entry = entry;
diff --git a/src/as/com/threerings/presents/dobj/EntryRemovedEvent.as b/src/as/com/threerings/presents/dobj/EntryRemovedEvent.as
index 3986aba2f..129676608 100644
--- a/src/as/com/threerings/presents/dobj/EntryRemovedEvent.as
+++ b/src/as/com/threerings/presents/dobj/EntryRemovedEvent.as
@@ -29,11 +29,14 @@ public class EntryRemovedEvent extends NamedEvent
      * @param oldEntry the previous value of the entry.
      */
     public function EntryRemovedEvent (
-            targetOid :int, name :String, key :Object, oldEntry :DSetEntry)
+            targetOid :int = 0, name :String = null, key :Object = null,
+            oldEntry :DSetEntry = null)
     {
         super(targetOid, name);
         _key = key;
-        _oldEntry = oldEntry;
+        if (oldEntry != null) {
+            _oldEntry = oldEntry;
+        }
     }
 
     /**
diff --git a/src/as/com/threerings/presents/dobj/EntryUpdatedEvent.as b/src/as/com/threerings/presents/dobj/EntryUpdatedEvent.as
index d469a4810..678ad4166 100644
--- a/src/as/com/threerings/presents/dobj/EntryUpdatedEvent.as
+++ b/src/as/com/threerings/presents/dobj/EntryUpdatedEvent.as
@@ -28,11 +28,14 @@ public class EntryUpdatedEvent extends NamedEvent
      * @param oldEntry the previous value of the entry.
      */
     public function EntryUpdatedEvent (
-            targetOid :int, name :String, entry :DSetEntry, oldEntry :DSetEntry)
+            targetOid :int = 0, name :String = null, entry :DSetEntry = null,
+            oldEntry :DSetEntry = null)
     {
         super(targetOid, name);
         _entry = entry;
-        _oldEntry = oldEntry;
+        if (oldEntry != null) {
+            _oldEntry = oldEntry;
+        }
     }
 
     /**
diff --git a/src/as/com/threerings/presents/dobj/MessageEvent.as b/src/as/com/threerings/presents/dobj/MessageEvent.as
index 8a325a749..439cea094 100644
--- a/src/as/com/threerings/presents/dobj/MessageEvent.as
+++ b/src/as/com/threerings/presents/dobj/MessageEvent.as
@@ -2,6 +2,7 @@ package com.threerings.presents.dobj {
 
 import com.threerings.io.ObjectInputStream;
 import com.threerings.io.ObjectOutputStream;
+import com.threerings.io.TypedArray;
 
 import com.threerings.util.StringBuilder;
 
@@ -26,7 +27,8 @@ public class MessageEvent extends NamedEvent
      * @param args the arguments for this message. This array should
      * contain only values of valid distributed object types.
      */
-    public function MessageEvent (targetOid :int, name :String, args :Array)
+    public function MessageEvent (
+            targetOid :int = 0, name :String = null, args :Array = null)
     {
         super(targetOid, name);
         _args = args;
@@ -76,6 +78,20 @@ public class MessageEvent extends NamedEvent
         buf.append(", args=", _args);
     }
 
+    // documentation inherited
+    public override function writeObject (out :ObjectOutputStream) :void
+    {
+        super.writeObject(out);
+        out.writeField(_args);
+    }
+
+    // documentation inherited
+    public override function readObject (ins :ObjectInputStream) :void
+    {
+        super.readObject(ins);
+        _args = (ins.readField(Array) as Array);
+    }
+
     protected var _args :Array;
 }
 }
diff --git a/src/as/com/threerings/presents/dobj/OidList.as b/src/as/com/threerings/presents/dobj/OidList.as
index 38b6eb605..ea0dce651 100644
--- a/src/as/com/threerings/presents/dobj/OidList.as
+++ b/src/as/com/threerings/presents/dobj/OidList.as
@@ -109,6 +109,7 @@ public class OidList
     public function readObject (ins :ObjectInputStream) :void
     {
         _oids = (ins.readField("[I") as TypedArray);
+        _oids.length = ins.readInt();
     }
 
     public function toString () :String