stop text input on connection start

client/mainmenu/CMainMenu.cpp

@@ -492,6 +492,7 @@ void CSimpleJoinScreen::connectToServer()
 {
 	textTitle->setText("Connecting...");
 	buttonOk->block(true);
+	CSDL_Ext::stopTextInput();
 
 	boost::thread(&CSimpleJoinScreen::connectThread, this, inputAddress->text, boost::lexical_cast<ui16>(inputPort->text));
 }