Index: trunk/BNC/bncapp.cpp
===================================================================
--- trunk/BNC/bncapp.cpp	(revision 1218)
+++ trunk/BNC/bncapp.cpp	(revision 1228)
@@ -572,5 +572,7 @@
     delete _server;
     _server = new QTcpServer;
-    _server->listen(QHostAddress::Any, _port);
+    if ( !_server->listen(QHostAddress::Any, _port) ) {
+      slotMessage("bncApp: cannot listen on ephemeris port");
+    }
     connect(_server, SIGNAL(newConnection()), this, SLOT(slotNewConnection()));
     delete _sockets;
@@ -586,5 +588,7 @@
     delete _serverCorr;
     _serverCorr = new QTcpServer;
-    _serverCorr->listen(QHostAddress::Any, _portCorr);
+    if ( !_serverCorr->listen(QHostAddress::Any, _portCorr) ) {
+      slotMessage("bncApp: cannot listen on correction port");
+    }
     connect(_serverCorr, SIGNAL(newConnection()), this, SLOT(slotNewConnectionCorr()));
     delete _socketsCorr;