Index: trunk/MagicSoft/Mars/mhist/MHCamera.cc
===================================================================
--- trunk/MagicSoft/Mars/mhist/MHCamera.cc	(revision 6276)
+++ trunk/MagicSoft/Mars/mhist/MHCamera.cc	(revision 6457)
@@ -858,13 +858,14 @@
         if (!issame)
         {
-            if (IsUsed(i) && iscol)
+            const Bool_t isnan = TMath::IsNaN(fArray[i+1]);
+            if (!IsUsed(i) || !iscol || isnan)
             {
-                if (TMath::IsNaN(fArray[i+1]))
+                hex.SetFillColor(10);
+
+                if (isnan)
                     gLog << warn << "MHCamera::Update: " << GetName() << " <" << GetTitle() << "> - Pixel Index #" << i << " contents is NaN (Not a Number)..." << endl;
-
-                hex.SetFillColor(GetColor(GetBinContent(i+1), min, max, islog));
             }
             else
-                hex.SetFillColor(10);
+                hex.SetFillColor(GetColor(GetBinContent(i+1), min, max, islog));
         }