Index: /trunk/BNC/bncgetthread.cpp
===================================================================
--- /trunk/BNC/bncgetthread.cpp	(revision 1146)
+++ /trunk/BNC/bncgetthread.cpp	(revision 1147)
@@ -74,4 +74,9 @@
   _rawInpFile = new QFile(rawInpFileName);
   _rawInpFile->open(QIODevice::ReadOnly);
+
+  if (!_rnx) {
+    cerr << "no RINEX path specified" << endl;
+    ::exit(0);
+  }
 }