Index: trunk/BNC/combination/bnccomb.cpp
===================================================================
--- trunk/BNC/combination/bnccomb.cpp	(revision 3055)
+++ trunk/BNC/combination/bnccomb.cpp	(revision 3064)
@@ -101,6 +101,4 @@
   QStringList combineStreams = settings.value("combineStreams").toStringList();
 
-  _masterAC = "BKG"; // TODO: make it an option
-
   if (combineStreams.size() >= 2) {
     QListIterator<QString> it(combineStreams);
@@ -111,5 +109,7 @@
       newAC->name       = hlp[1];
       newAC->weight     = hlp[2].toDouble();
-
+      if (_masterAC.isEmpty()) {
+        _masterAC = newAC->name;
+      }
       _ACs[newAC->mountPoint] = newAC;
     }