diff --git a/src/cpp/ripple/Application.h b/src/cpp/ripple/Application.h
index 343d592637..a7518299e4 100644
--- a/src/cpp/ripple/Application.h
+++ b/src/cpp/ripple/Application.h
@@ -35,7 +35,7 @@ public:
 	DatabaseCon(const std::string& name, const char *initString[], int countInit);
 	~DatabaseCon();
 	Database* getDB() { return mDatabase; }
-	ScopedLock getDBLock() { return ScopedLock(mLock); }
+	boost::recursive_mutex& getDBLock() { return mLock; }
 };
 
 class Application
diff --git a/src/cpp/ripple/HashedObject.cpp b/src/cpp/ripple/HashedObject.cpp
index 7765574ad6..d430272a37 100644
--- a/src/cpp/ripple/HashedObject.cpp
+++ b/src/cpp/ripple/HashedObject.cpp
@@ -12,7 +12,7 @@ SETUP_LOG();
 DECLARE_INSTANCE(HashedObject);
 
 HashedObjectStore::HashedObjectStore(int cacheSize, int cacheAge) :
-	mCache("HashedObjectStore", cacheSize, cacheAge), mWritePending(false)
+	mCache("HashedObjectStore", cacheSize, cacheAge), mWritePending(false), mWriteGeneration(0)
 {
 	mWriteSet.reserve(128);
 }
@@ -53,27 +53,29 @@ bool HashedObjectStore::store(HashedObjectType type, uint32 index,
 
 void HashedObjectStore::waitWrite()
 {
-	boost::unique_lock<boost::mutex> sl(mWriteMutex);
-	while (mWritePending)
+	boost::mutex::scoped_lock sl(mWriteMutex);
+	int gen = mWriteGeneration;
+	while (mWritePending && (mWriteGeneration == gen))
 		mWriteCondition.wait(sl);
 }
 
 void HashedObjectStore::bulkWrite()
 {
-	LoadEvent::pointer event = theApp->getJobQueue().getLoadEvent(jtDISK);
+	LoadEvent::autoptr event(theApp->getJobQueue().getLoadEventAP(jtDISK));
 	while (1)
 	{
 		std::vector< boost::shared_ptr<HashedObject> > set;
 		set.reserve(128);
 
 		{
-			boost::unique_lock<boost::mutex> sl(mWriteMutex);
+			boost::mutex::scoped_lock sl(mWriteMutex);
 			mWriteSet.swap(set);
 			assert(mWriteSet.empty());
+			++mWriteGeneration;
+			mWriteCondition.notify_all();
 			if (set.empty())
 			{
 				mWritePending = false;
-				mWriteCondition.notify_all();
 				return;
 			}
 		}
@@ -85,7 +87,7 @@ void HashedObjectStore::bulkWrite()
 
 		Database* db = theApp->getHashNodeDB()->getDB();
 		{
-			ScopedLock sl = theApp->getHashNodeDB()->getDBLock();
+			ScopedLock sl( theApp->getHashNodeDB()->getDBLock());
 
 			db->executeSQL("BEGIN TRANSACTION;");
 
diff --git a/src/cpp/ripple/HashedObject.h b/src/cpp/ripple/HashedObject.h
index 20a187fb72..69c5e55f79 100644
--- a/src/cpp/ripple/HashedObject.h
+++ b/src/cpp/ripple/HashedObject.h
@@ -47,8 +47,9 @@ class HashedObjectStore
 protected:
 	TaggedCache<uint256, HashedObject> mCache;
 
-	boost::mutex mWriteMutex;
-	boost::condition_variable mWriteCondition;
+	boost::mutex				mWriteMutex;
+	boost::condition_variable	mWriteCondition;
+	int							mWriteGeneration;
 
 	std::vector< boost::shared_ptr<HashedObject> > mWriteSet;
 	bool mWritePending;
diff --git a/src/cpp/ripple/JobQueue.h b/src/cpp/ripple/JobQueue.h
index ca91a06f19..6dc495da7e 100644
--- a/src/cpp/ripple/JobQueue.h
+++ b/src/cpp/ripple/JobQueue.h
@@ -104,6 +104,8 @@ public:
 
 	LoadEvent::pointer getLoadEvent(JobType t)
 	{ return boost::make_shared<LoadEvent>(boost::ref(mJobLoads[t]), true, 1); }
+	LoadEvent::autoptr getLoadEventAP(JobType t)
+	{ return LoadEvent::autoptr(new LoadEvent(mJobLoads[t], true, 1)); }
 
 	Json::Value getJson(int c = 0);
 };
diff --git a/src/cpp/ripple/Ledger.cpp b/src/cpp/ripple/Ledger.cpp
index 334f561549..2e9482e0fe 100644
--- a/src/cpp/ripple/Ledger.cpp
+++ b/src/cpp/ripple/Ledger.cpp
@@ -339,9 +339,8 @@ uint256 Ledger::getHash()
 	return mHash;
 }
 
-void Ledger::saveAcceptedLedger(bool fromConsensus)
+void Ledger::saveAcceptedLedger(bool fromConsensus, LoadEvent::pointer event)
 { // can be called in a different thread
-	LoadEvent::pointer event = theApp->getJobQueue().getLoadEvent(jtDISK);
 	cLog(lsTRACE) << "saveAcceptedLedger " << (fromConsensus ? "fromConsensus " : "fromAcquire ") << getLedgerSeq();
 	static boost::format ledgerExists("SELECT LedgerSeq FROM Ledgers where LedgerSeq = %d;");
 	static boost::format deleteLedger("DELETE FROM Ledgers WHERE LedgerSeq = %d;");
@@ -369,7 +368,7 @@ void Ledger::saveAcceptedLedger(bool fromConsensus)
 
 		SHAMap& txSet = *peekTransactionMap();
 		Database *db = theApp->getTxnDB()->getDB();
-		ScopedLock dbLock = theApp->getTxnDB()->getDBLock();
+		ScopedLock dbLock(theApp->getTxnDB()->getDBLock());
 		db->executeSQL("BEGIN TRANSACTION;");
 		SHAMapTreeNode::TNType type;
 		for (SHAMapItem::pointer item = txSet.peekFirstItem(type); !!item;
@@ -439,7 +438,7 @@ void Ledger::saveAcceptedLedger(bool fromConsensus)
 	}
 
 	theApp->getLedgerMaster().setFullLedger(shared_from_this());
-	event = LoadEvent::pointer();
+	event->stop();
 
 	theApp->getOPs().pubLedger(shared_from_this());
 
@@ -1136,7 +1135,8 @@ void Ledger::pendSave(bool fromConsensus)
 	if (!fromConsensus && !theApp->isNewFlag(getHash(), SF_SAVED))
 		return;
 
-	boost::thread thread(boost::bind(&Ledger::saveAcceptedLedger, shared_from_this(), fromConsensus));
+	boost::thread thread(boost::bind(&Ledger::saveAcceptedLedger, shared_from_this(),
+		fromConsensus, theApp->getJobQueue().getLoadEvent(jtDISK)));
 	thread.detach();
 
 	boost::recursive_mutex::scoped_lock sl(sPendingSaveLock);
diff --git a/src/cpp/ripple/Ledger.h b/src/cpp/ripple/Ledger.h
index 64bf9ef4a6..7f9556c3ed 100644
--- a/src/cpp/ripple/Ledger.h
+++ b/src/cpp/ripple/Ledger.h
@@ -19,6 +19,7 @@
 #include "BitcoinUtil.h"
 #include "SHAMap.h"
 #include "InstanceCounter.h"
+#include "LoadMonitor.h"
 
 enum LedgerStateParms
 {
@@ -93,7 +94,7 @@ protected:
 
 	static void incPendingSaves();
 	static void decPendingSaves();
-	void saveAcceptedLedger(bool fromConsensus);
+	void saveAcceptedLedger(bool fromConsensus, LoadEvent::pointer);
 
 public:
 	Ledger(const RippleAddress& masterID, uint64 startAmount); // used for the starting bootstrap ledger
diff --git a/src/cpp/ripple/LedgerConsensus.cpp b/src/cpp/ripple/LedgerConsensus.cpp
index ef32c11531..e3e867d90a 100644
--- a/src/cpp/ripple/LedgerConsensus.cpp
+++ b/src/cpp/ripple/LedgerConsensus.cpp
@@ -1251,7 +1251,7 @@ void LedgerConsensus::accept(SHAMap::ref set, LoadEvent::pointer)
 		cLog(lsINFO) << "CNF newLCL " << newLCLHash;
 
 	Ledger::pointer newOL = boost::make_shared<Ledger>(true, boost::ref(*newLCL));
-	ScopedLock sl = theApp->getLedgerMaster().getLock();
+	ScopedLock sl( theApp->getLedgerMaster().getLock());
 
 	// Apply disputed transactions that didn't get in
 	TransactionEngine engine(newOL);
diff --git a/src/cpp/ripple/LoadMonitor.h b/src/cpp/ripple/LoadMonitor.h
index 992046c178..6eb259a792 100644
--- a/src/cpp/ripple/LoadMonitor.h
+++ b/src/cpp/ripple/LoadMonitor.h
@@ -36,7 +36,8 @@ public:
 class LoadEvent
 {
 public:
-	typedef boost::shared_ptr<LoadEvent> pointer;
+	typedef boost::shared_ptr<LoadEvent>	pointer;
+	typedef std::auto_ptr<LoadEvent>		autoptr;
 
 protected:
 	LoadMonitor&				mMonitor;
diff --git a/src/cpp/ripple/NetworkOPs.cpp b/src/cpp/ripple/NetworkOPs.cpp
index 97adc8e9f2..e67d8eb927 100644
--- a/src/cpp/ripple/NetworkOPs.cpp
+++ b/src/cpp/ripple/NetworkOPs.cpp
@@ -888,7 +888,7 @@ std::vector< std::pair<uint32, uint256> >
 
 	{
 		Database* db = theApp->getTxnDB()->getDB();
-		ScopedLock dbLock = theApp->getTxnDB()->getDBLock();
+		ScopedLock sl(theApp->getTxnDB()->getDBLock());
 
 		SQL_FOREACH(db, sql)
 		{
@@ -909,7 +909,7 @@ std::vector<RippleAddress>
 	RippleAddress acct;
 	{
 		Database* db = theApp->getTxnDB()->getDB();
-		ScopedLock dblock = theApp->getTxnDB()->getDBLock();
+		ScopedLock sl(theApp->getTxnDB()->getDBLock());
 		SQL_FOREACH(db, sql)
 		{
 			if (acct.setAccountID(db->getStrBinary("Account")))
@@ -1002,7 +1002,7 @@ void NetworkOPs::pubLedger(Ledger::ref lpAccepted)
 	if (NetworkOPs::omDISCONNECTED == getOperatingMode())
 		return;
 
-	LoadEvent::pointer event = theApp->getJobQueue().getLoadEvent(jtPUBLEDGER);
+	LoadEvent::autoptr event(theApp->getJobQueue().getLoadEventAP(jtPUBLEDGER));
 
 	{
 		boost::recursive_mutex::scoped_lock	sl(mMonitorLock);
diff --git a/src/cpp/ripple/Peer.cpp b/src/cpp/ripple/Peer.cpp
index f14b4411ba..f207cba9b1 100644
--- a/src/cpp/ripple/Peer.cpp
+++ b/src/cpp/ripple/Peer.cpp
@@ -373,7 +373,7 @@ void Peer::processReadBuffer()
 
 //	std::cerr << "Peer::processReadBuffer: " << mIpPort.first << " " << mIpPort.second << std::endl;
 
-	LoadEvent::pointer event = theApp->getJobQueue().getLoadEvent(jtPEER);
+	LoadEvent::autoptr event(theApp->getJobQueue().getLoadEventAP(jtPEER));
 
 	boost::recursive_mutex::scoped_lock sl(theApp->getMasterLock());
 
diff --git a/src/cpp/ripple/RPCHandler.cpp b/src/cpp/ripple/RPCHandler.cpp
index cc181caaba..653231d479 100644
--- a/src/cpp/ripple/RPCHandler.cpp
+++ b/src/cpp/ripple/RPCHandler.cpp
@@ -1169,7 +1169,7 @@ Json::Value RPCHandler::doTxHistory(const Json::Value& params)
 
 		{
 			Database* db = theApp->getTxnDB()->getDB();
-			ScopedLock dbLock = theApp->getTxnDB()->getDBLock();
+			ScopedLock sl (theApp->getTxnDB()->getDBLock());
 
 			SQL_FOREACH(db, sql)
 			{
@@ -1493,7 +1493,7 @@ Json::Value RPCHandler::doCommand(const std::string& command, Json::Value& param
 	cLog(lsTRACE) << "RPC:" << command;
 	cLog(lsTRACE) << "RPC params:" << params;
 
-	LoadEvent::pointer le = theApp->getJobQueue().getLoadEvent(jtRPC);
+	LoadEvent::autoptr le(theApp->getJobQueue().getLoadEventAP(jtRPC));
 
 	mRole	= role;
 
diff --git a/src/cpp/ripple/ScopedLock.h b/src/cpp/ripple/ScopedLock.h
index 5f85b83ed3..e0859fd774 100644
--- a/src/cpp/ripple/ScopedLock.h
+++ b/src/cpp/ripple/ScopedLock.h
@@ -6,16 +6,18 @@
 #include <boost/make_shared.hpp>
 #include <boost/ref.hpp>
 
+typedef boost::recursive_mutex::scoped_lock ScopedLock;
+
 // A lock holder that can be returned and copied by value
 // When the last reference goes away, the lock is released
 
-class ScopedLock
+class SharedScopedLock
 {
 protected:
 	mutable boost::shared_ptr<boost::recursive_mutex::scoped_lock> mHolder;
 
 public:
-	ScopedLock(boost::recursive_mutex& mutex) :
+	SharedScopedLock(boost::recursive_mutex& mutex) :
 		mHolder(boost::make_shared<boost::recursive_mutex::scoped_lock>(boost::ref(mutex)))	{ ;	}
 
 	void lock() const	{ mHolder->lock(); }
diff --git a/src/cpp/ripple/Transaction.cpp b/src/cpp/ripple/Transaction.cpp
index 304494826c..5305c784f4 100644
--- a/src/cpp/ripple/Transaction.cpp
+++ b/src/cpp/ripple/Transaction.cpp
@@ -146,12 +146,13 @@ bool Transaction::save()
 	 default:			status = TXN_SQL_UNKNOWN;
 	}
 
-	std::string exists = boost::str(boost::format("SELECT Status FROM Transactions WHERE TransID = '%s';")
-		% mTransaction->getTransactionID().GetHex());
+	static boost::format selStat("SELECT Status FROM Transactions WHERE	TransID = '%s';");
+	std::string exists = boost::str(selStat % mTransaction->getTransactionID().GetHex());
 
 	Database *db = theApp->getTxnDB()->getDB();
-	ScopedLock dbLock = theApp->getTxnDB()->getDBLock();
-	if (SQL_EXISTS(db, exists)) return false;
+	ScopedLock dbLock(theApp->getTxnDB()->getDBLock());
+	if (SQL_EXISTS(db, exists))
+		return false;
 	return
 		db->executeSQL(mTransaction->getSQLInsertHeader() + mTransaction->getSQL(getLedger(), status) + ";");
 }
diff --git a/src/cpp/ripple/ValidationCollection.cpp b/src/cpp/ripple/ValidationCollection.cpp
index cab64a9508..f663b2c2a1 100644
--- a/src/cpp/ripple/ValidationCollection.cpp
+++ b/src/cpp/ripple/ValidationCollection.cpp
@@ -289,7 +289,7 @@ void ValidationCollection::condWrite()
 
 void ValidationCollection::doWrite()
 {
-	LoadEvent::pointer event = theApp->getJobQueue().getLoadEvent(jtDISK);
+	LoadEvent::autoptr event(theApp->getJobQueue().getLoadEventAP(jtDISK));
 	static boost::format insVal("INSERT INTO LedgerValidations "
 		"(LedgerHash,NodePubKey,Flags,SignTime,Signature) VALUES ('%s','%s','%u','%u',%s);");
 
diff --git a/src/cpp/ripple/Wallet.cpp b/src/cpp/ripple/Wallet.cpp
index 1d21fb5eb6..8843e693c3 100644
--- a/src/cpp/ripple/Wallet.cpp
+++ b/src/cpp/ripple/Wallet.cpp
@@ -78,7 +78,7 @@ bool Wallet::nodeIdentityCreate() {
 #ifdef CREATE_NEW_DH_PARAMS
 	std::string		strDh512		= DH_der_gen(512);
 #else
-	static char dh512Param[] = {
+	static const unsigned char dh512Param[] = {
 		0x30, 0x46, 0x02, 0x41, 0x00, 0x98, 0x15, 0xd2, 0xd0, 0x08, 0x32, 0xda,
 		0xaa, 0xac, 0xc4, 0x71, 0xa3, 0x1b, 0x11, 0xf0, 0x6c, 0x62, 0xb2, 0x35,
 		0x8a, 0x10, 0x92, 0xc6, 0x0a, 0xa3, 0x84, 0x7e, 0xaf, 0x17, 0x29, 0x0b,
@@ -86,7 +86,7 @@ bool Wallet::nodeIdentityCreate() {
 		0x6e, 0xdb, 0x57, 0x72, 0x4a, 0x7e, 0xcd, 0xaf, 0xbd, 0x3a, 0x97, 0x55,
 		0x51, 0x77, 0x5a, 0x34, 0x7c, 0xe8, 0xc5, 0x71, 0x63, 0x02, 0x01, 0x02
 	};
-	std::string		strDh512(dh512Param, sizeof(dh512Param));
+	std::string		strDh512(reinterpret_cast<const char *>(dh512Param), sizeof(dh512Param));
 #endif
 
 
diff --git a/src/cpp/ripple/utils.h b/src/cpp/ripple/utils.h
index 7667df578a..c6568d5104 100644
--- a/src/cpp/ripple/utils.h
+++ b/src/cpp/ripple/utils.h
@@ -154,7 +154,8 @@ inline std::string strHex(const uint64 uiHost)
 
 inline static std::string sqlEscape(const std::string& strSrc)
 {
-	return str(boost::format("X'%s'") % strHex(strSrc));
+	static boost::format f("X'%s'");
+	return str(f % strHex(strSrc));
 }
 
 template<class Iterator>
diff --git a/src/js/amount.js b/src/js/amount.js
index 8921a5092b..b50d4e39ac 100644
--- a/src/js/amount.js
+++ b/src/js/amount.js
@@ -478,8 +478,15 @@ Amount.prototype.to_human = function (opts)
 {
   opts = opts || {};
 
-  var int_part = this._value.divide(consts.bi_xns_unit).toString(10);
-  var fraction_part = this._value.mod(consts.bi_xns_unit).toString(10);
+  // Default options
+  if ("undefined" === typeof opts.group_sep) opts.group_sep = true;
+  opts.group_width = opts.group_width || 3;
+
+  var denominator = this._is_native ?
+        consts.bi_xns_unit :
+        consts.bi_10.clone().pow(-this._offset);
+  var int_part = this._value.divide(denominator).toString(10);
+  var fraction_part = this._value.mod(denominator).toString(10);
 
   int_part = int_part.replace(/^0*/, '');
   fraction_part = fraction_part.replace(/0*$/, '');
@@ -488,6 +495,13 @@ Amount.prototype.to_human = function (opts)
     fraction_part = fraction_part.slice(0, opts.precision);
   }
 
+  if (opts.group_sep) {
+    if ("string" !== typeof opts.group_sep) {
+      opts.group_sep = ',';
+    }
+    int_part = utils.chunkString(int_part, opts.group_width, true).join(opts.group_sep);
+  }
+
   var formatted = '';
   formatted += int_part.length ? int_part : '0';
   formatted += fraction_part.length ? '.'+fraction_part : '';
@@ -597,7 +611,7 @@ Amount.prototype.parse_human = function(j) {
 
       this._is_native   = false;
       var multiplier    = consts.bi_10.clone().pow(precision);
-      this._value      	= this._value.multiply(multiplier).add(fraction);
+      this._value      	= this._value.multiply(multiplier).add(new BigInteger(fraction));
       this._offset     	= -precision;
 
       this.canonicalize();
diff --git a/src/js/remote.js b/src/js/remote.js
index af2e012891..8ebadb6a2a 100644
--- a/src/js/remote.js
+++ b/src/js/remote.js
@@ -39,23 +39,16 @@ var Request = function (remote, command) {
   };
   this.remote     = remote;
   this.requested  = false;
-
-  this.on('request', function () {
-      self.request_default();
-    });
 };
 
 Request.prototype  = new EventEmitter;
 
 // Send the request to a remote.
 Request.prototype.request = function (remote) {
-  this.emit('request', remote);
-};
-
-Request.prototype.request_default = function () {
   if (!this.requested) {
     this.requested  = true;
     this.remote.request(this);
+    this.emit('request', remote);
   }
 };
 
@@ -595,7 +588,8 @@ Remote.prototype.request_ledger_entry = function (type) {
     this.type = type;
 
   // Transparent caching:
-  request.on('request', function (remote) {           // Intercept default request.
+  this.request_default = this.request;
+  this.request = function () {                        // Intercept default request.
     if (self._ledger_hash) {
       // XXX Add caching.
     }
@@ -613,7 +607,7 @@ Remote.prototype.request_ledger_entry = function (type) {
 
       if (node) {
         // Emulate fetch of ledger entry.
-        this.request.emit('success', {
+        self.emit('success', {
             // YYY Missing lots of fields.
             'node' :  node,
           });
@@ -637,7 +631,7 @@ Remote.prototype.request_ledger_entry = function (type) {
         this.request_default();
       }
     }
-  });
+  };
 
   return request;
 };
diff --git a/src/js/utils.js b/src/js/utils.js
index 563969fee4..31d2a72d63 100644
--- a/src/js/utils.js
+++ b/src/js/utils.js
@@ -70,6 +70,19 @@ var stringToArray = function (s) {
   return a;
 };
 
+var chunkString = function (str, n, leftAlign) {
+  var ret = [];
+  var i=0, len=str.length;
+  if (leftAlign) {
+    i = str.length % n;
+    if (i) ret.push(str.slice(0, i));
+  }
+  for(; i < len; i += n) {
+    ret.push(str.slice(i, n+i));
+  }
+  return ret;
+};
+
 var logObject = function (msg, obj) {
   console.log(msg, JSON.stringify(obj, undefined, 2));
 };
@@ -81,5 +94,6 @@ exports.hexToString   = hexToString;
 exports.stringToArray = stringToArray;
 exports.stringToHex   = stringToHex;
 exports.logObject     = logObject;
+exports.chunkString   = chunkString;
 
 // vim:sw=2:sts=2:ts=8:et