Index: /trunk/BNC/src/combination/bncbiassnx.cpp
===================================================================
--- /trunk/BNC/src/combination/bncbiassnx.cpp	(revision 10659)
+++ /trunk/BNC/src/combination/bncbiassnx.cpp	(revision 10660)
@@ -104,5 +104,7 @@
   clear();
   QFile inFile(fileName);
-  inFile.open(QIODevice::ReadOnly | QIODevice::Text);
+  if (!inFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
+    return failure;
+  }
 
   QTextStream in(&inFile);