Index: trunk/MagicSoft/include-Classes/MMcFormat/MMcTrigHeader.hxx
===================================================================
--- trunk/MagicSoft/include-Classes/MMcFormat/MMcTrigHeader.hxx	(revision 1868)
+++ trunk/MagicSoft/include-Classes/MMcFormat/MMcTrigHeader.hxx	(revision 1890)
@@ -100,5 +100,5 @@
     for(i=0;i<CAMERA_PIXELS;i++)
     {
-      if (fThreshold[i] < 1.e6)
+      if (fThreshold[i] < 1.e6 && fThreshold[i] > 0.)
       {
         sum += fThreshold[i];