diff -r 0dc834721d8e -r 9298ba0cd70a controls/LogViewer.py
--- a/controls/LogViewer.py	Tue Apr 04 11:34:31 2017 +0300
+++ b/controls/LogViewer.py	Wed Apr 05 14:17:02 2017 +0300
@@ -379,7 +379,7 @@
         self.ScrollTimer.Stop()
 
     def ResetLogMessages(self):
-        self.previous_log_count = [None]*LogLevelsCount
+        self.ResetLogCounters()
         self.OldestMessages = []
         self.LogMessages = []
         self.LogMessagesTimestamp = numpy.array([])
@@ -401,6 +401,9 @@
                 return LogMessage(tv_sec, tv_nsec, level, self.LevelIcons[level], msg)
         return None
 
+    def ResetLogCounters(self):
+        self.previous_log_count = [None]*LogLevelsCount
+    
     def SetLogCounters(self, log_count):
         new_messages = []
         for level, count, prev in zip(xrange(LogLevelsCount), log_count, self.previous_log_count):