diff --git a/canframemodel.cpp b/canframemodel.cpp
index 94f0e0a..a0e825e 100644
--- a/canframemodel.cpp
+++ b/canframemodel.cpp
@@ -410,7 +410,7 @@ void CANFrameModel::addFrame(const CANFrame& frame, bool autoRefresh = false)
         frames.append(tempFrame);
         if (filters[tempFrame.ID])
         {
-            if (autoRefresh) beginInsertRows(QModelIndex(), filteredFrames.count() + 1, filteredFrames.count() + 1);
+            if (autoRefresh) beginInsertRows(QModelIndex(), filteredFrames.count(), filteredFrames.count());
             filteredFrames.append(tempFrame);
             if (autoRefresh) endInsertRows();
         }
@@ -432,7 +432,7 @@ void CANFrameModel::addFrame(const CANFrame& frame, bool autoRefresh = false)
             frames.append(tempFrame);
             if (filters[tempFrame.ID])
             {
-                if (autoRefresh) beginInsertRows(QModelIndex(), filteredFrames.count() + 1, filteredFrames.count() + 1);
+                if (autoRefresh) beginInsertRows(QModelIndex(), filteredFrames.count(), filteredFrames.count());
                 filteredFrames.append(tempFrame);
                 if (autoRefresh) endInsertRows();
             }
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 6a34cc2..a0d1573 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -160,6 +160,10 @@ MainWindow::MainWindow(QWidget *parent) :
     temp.bus = 0;
     temp.ID = 0x100;
     temp.len = 0;
+    temp.extended = false;
+    temp.isReceived = true;
+    temp.remote = false;
+    temp.timestamp = 100000000;
     model->addFrame(temp, true);
     qApp->processEvents();
     tickGUIUpdate(); //force a GUI refresh so that the row exists to measure