Index: /trunk/FACT++/gui/FactGui.h
===================================================================
--- /trunk/FACT++/gui/FactGui.h	(revision 11238)
+++ /trunk/FACT++/gui/FactGui.h	(revision 11239)
@@ -1006,8 +1006,8 @@
         fFadRefClockMax->setEnabled(true);
 
-        fFadRefClockMin->setValue(ptr[0]*2.048);
-        fFadRefClockMax->setValue(ptr[1]*2.048);
-
-        const int64_t diff = int64_t(ptr[1]) - int64_t(ptr[0]);
+        fFadRefClockMin->setValue(ptr[40]*2.048);
+        fFadRefClockMax->setValue(ptr[41]*2.048);
+
+        const int64_t diff = int64_t(ptr[41]) - int64_t(ptr[40]);
 
         SetLedColor(fFadLedRefClock, abs(diff)>3?kLedRed:kLedGreen, d.time);