diff --git a/src/drivers/Qt/NetPlay.cpp b/src/drivers/Qt/NetPlay.cpp
index 0f7e3a02..2621d9f6 100644
--- a/src/drivers/Qt/NetPlay.cpp
+++ b/src/drivers/Qt/NetPlay.cpp
@@ -19,6 +19,7 @@
  */
 
 #include <QDir>
+#include <QFileInfo>
 #include <QMessageBox>
 #include <QTemporaryFile>
 
@@ -840,7 +841,7 @@ void NetPlayServer::processClientRomLoadRequests(void)
 			{
 				netPlayTextMsg<128>  errorMsg(NETPLAY_ERROR_MSG);
 				errorMsg.setFlag(netPlayTextMsgFlags::Warning);
-				errorMsg.printf("Host is rejected ROMs load request");
+				errorMsg.printf("Host has rejected ROM load request");
 				sendMsg( client, &errorMsg, errorMsg.hdr.msgSize, [&errorMsg]{ errorMsg.toNetworkByteOrder(); } );
 			}
 
@@ -1127,6 +1128,11 @@ NetPlayClient::~NetPlayClient(void)
 	{
 		::free(recvMsgBuf); recvMsgBuf = nullptr;
 	}
+
+	if (numMsgBoxObjs != 0)
+	{
+		printf("Warning: Client has leaked message dialogs\n");
+	}
 	printf("NetPlayClient Destructor\n");
 }
 
@@ -1611,9 +1617,15 @@ void NetPlayClient::clientProcessMessage( void *msgBuf, size_t msgSize )
 			msg->toHostByteOrder();
 			FCEU_printf("NetPlay Error: %s\n", msg->getBuffer());
 
-			QString msgBoxTxt = tr("Host has replied with an error:\n\n");
+			numMsgBoxObjs++;
+			QString msgBoxTxt  = tr("Host has replied with an error:\n\n");
 	       		msgBoxTxt += tr(msg->getBuffer());
-			QMessageBox::critical( consoleWindow, tr("NetPlay Error"), msgBoxTxt, QMessageBox::Ok );
+
+			QMessageBox* msgBox = new QMessageBox( QMessageBox::Critical, tr("NetPlay Error"), msgBoxTxt, QMessageBox::Ok, consoleWindow );
+			connect( msgBox->button(QMessageBox::Ok), SIGNAL(clicked(void)), msgBox, SLOT(accept(void)));
+			connect( msgBox, &QMessageBox::finished, this, [this, msgBox](){ msgBox->deleteLater(); } );
+			connect( msgBox, SIGNAL(destroyed(QObject*)), this, SLOT(onMessageBoxDestroy(QObject*)));
+			msgBox->show();
 
 			if (msg->isFlagSet(netPlayTextMsgFlags::Disconnect))
 			{
@@ -1743,6 +1755,19 @@ void NetPlayClient::clientReadyRead()
 	readMessages( clientMessageCallback, this );
 }
 //-----------------------------------------------------------------------------
+void NetPlayClient::onMessageBoxDestroy(QObject* obj)
+{
+	//printf("MessageBox Destroyed: %p\n", obj);
+	if (numMsgBoxObjs > 0)
+	{
+		numMsgBoxObjs--;
+	}
+	else
+	{
+		printf("Warning: Unexpected MessageBox Destroy: %p\n", obj);
+	}
+}
+//-----------------------------------------------------------------------------
 //--- NetPlayHostDialog
 //-----------------------------------------------------------------------------
 NetPlayHostDialog* NetPlayHostDialog::instance = nullptr;
diff --git a/src/drivers/Qt/NetPlay.h b/src/drivers/Qt/NetPlay.h
index 67c02a2d..d41f6e35 100644
--- a/src/drivers/Qt/NetPlay.h
+++ b/src/drivers/Qt/NetPlay.h
@@ -327,6 +327,7 @@ class NetPlayClient : public QObject
 		uint64_t  pingDelayLast = 0;
 		uint64_t  pingNumSamples = 0;
 		uint32_t  romCrc32 = 0;
+		uint32_t  numMsgBoxObjs = 0;
 
 		std::list <NetPlayFrameInput> input;
 		FCEU::mutex inputMtx;
@@ -345,6 +346,7 @@ class NetPlayClient : public QObject
 		void onRomUnload(void);
 		void serverReadyRead(void);
 		void clientReadyRead(void);
+		void onMessageBoxDestroy(QObject* obj);
 };