diff --git a/lib/client/clock-client.js b/lib/client/clock-client.js
index ce4b6fb060d..18b5116f94d 100644
--- a/lib/client/clock-client.js
+++ b/lib/client/clock-client.js
@@ -45,6 +45,22 @@ client.render = function render (xhr) {
     }
   });
 
+  let $errorMessage = $('#errorMessage');
+
+  // If no one measured value found => show "-?-"
+  if (!rec) {
+    if (!$errorMessage.length) {
+      $('#arrowDiv').append('<div id="errorMessage" title="No data found in DB">-?-</div>');
+      $('#arrow').hide();
+    } else {
+      $errorMessage.show();
+    }
+    return;
+  } else {
+    $errorMessage.length && $errorMessage.hide();
+    $('#arrow').show();
+  }
+  
   let last = new Date(rec.date);
   let now = new Date();
 
@@ -163,4 +179,4 @@ client.init = function init () {
   setInterval(client.query, 1 * 60 * 1000);
 };
 
-module.exports = client;
\ No newline at end of file
+module.exports = client;
diff --git a/lib/client/index.js b/lib/client/index.js
index 057aac6e08b..979348c0cb5 100644
--- a/lib/client/index.js
+++ b/lib/client/index.js
@@ -1,5 +1,4 @@
 'use strict';
-'use strict';
 
 var _ = require('lodash');
 var $ = (global && global.$) || require('jquery');
@@ -64,7 +63,7 @@ client.init = function init (callback) {
   }).fail(function fail (jqXHR, textStatus, errorThrown) {
 
     // check if we couldn't reach the server at all, show offline message
-    if (jqXHR.readyState == 0) {
+    if (!jqXHR.readyState) {
       console.log('Application appears to be OFFLINE');
       $('#loadingMessageText').html('Connecting to Nightscout server failed, retrying every 2 seconds');
       window.setTimeout(window.Nightscout.client.init(), 2000);
@@ -1006,7 +1005,7 @@ client.load = function load (serverSettings, callback) {
   socket.on('notification', function(notify) {
     console.log('notification from server:', notify);
 
-    if (notify.timestamp && previousNotifyTimestamp != notify.timestamp) {
+    if (notify.timestamp && previousNotifyTimestamp !== notify.timestamp) {
       previousNotifyTimestamp = notify.timestamp;
       client.plugins.visualizeAlarm(client.sbx, notify, notify.title + ' ' + notify.message);
     } else {
diff --git a/lib/client/renderer.js b/lib/client/renderer.js
index 587489d868c..eb356b6e9e5 100644
--- a/lib/client/renderer.js
+++ b/lib/client/renderer.js
@@ -53,7 +53,7 @@ function init (client, d3) {
 
   // get the desired opacity for context chart based on the brush extent
   renderer.highlightBrushPoints = function highlightBrushPoints (data) {
-    if (data.mills >= chart().brush.extent()[0].getTime() && data.mills <= chart().brush.extent()[1].getTime()) {
+    if (client.latestSGV && data.mills >= chart().brush.extent()[0].getTime() && data.mills <= chart().brush.extent()[1].getTime()) {
       return chart().futureOpacity(data.mills - client.latestSGV.mills);
     } else {
       return 0.5;
@@ -111,7 +111,7 @@ function init (client, d3) {
           return d.type === 'forecast' ? 'none' : d.color;
         })
         .attr('opacity', function(d) {
-          return d.noFade ? 100 : chart().futureOpacity(d.mills - client.latestSGV.mills);
+          return d.noFade || !client.latestSGV ? 100 : chart().futureOpacity(d.mills - client.latestSGV.mills);
         })
         .attr('stroke-width', function(d) {
           return d.type === 'mbg' ? 2 : d.type === 'forecast' ? 2 : 0;
@@ -897,7 +897,7 @@ function init (client, d3) {
         , treatments: treatmentCount
       }, client.sbx.data.profile.getCarbRatio(new Date()));
     });
-  }
+  };
 
   renderer.drawTreatment = function drawTreatment (treatment, opts, carbratio) {
     if (!treatment.carbs && !treatment.insulin) {
@@ -920,7 +920,7 @@ function init (client, d3) {
     var arc = prepareArc(treatment, radius);
     var treatmentDots = appendTreatments(treatment, arc);
     appendLabels(treatmentDots, arc, opts);
-  }
+  };
 
   renderer.addBasals = function addBasals (client) {
 
@@ -1009,7 +1009,7 @@ function init (client, d3) {
       .attr('stroke', '#0099ff')
       .attr('stroke-width', 1)
       .attr('fill', 'none')
-      .attr('d', valueline(linedata))
+      .attr('d', valueline(linedata));
 
     g.append('path')
       .attr('class', 'line notempline')
@@ -1017,7 +1017,7 @@ function init (client, d3) {
       .attr('stroke-width', 1)
       .attr('stroke-dasharray', ('3, 3'))
       .attr('fill', 'none')
-      .attr('d', valueline(notemplinedata))
+      .attr('d', valueline(notemplinedata));
 
     g.append('path')
       .attr('class', 'area basalarea')
diff --git a/lib/report_plugins/daytoday.js b/lib/report_plugins/daytoday.js
index 72eaf0de3a0..5f7983480c5 100644
--- a/lib/report_plugins/daytoday.js
+++ b/lib/report_plugins/daytoday.js
@@ -102,10 +102,11 @@ daytoday.report = function report_daytoday (datastorage, sorteddaystoshow, optio
   var fatAverage = fatSum / datastorage.alldays;
 
   if (options.insulindistribution)
-    $('#daytodaycharts').append('<br><br><b>' + translate('TDD average') + ':</b> ' + tddAverage.toFixed(1) + 'U <b>' +
-      translate('Carbs average') + ':</b> ' + carbsAverage.toFixed(0) + 'g' +
-      translate('Protein average') + ':</b> ' + proteinAverage.toFixed(0) + 'g' +
-      translate('Fat average') + ':</b> ' + fatAverage.toFixed(0) + 'g'
+    $('#daytodaycharts').append('<br><br>' +
+        '<b>' + translate('TDD average') + ':</b> ' + tddAverage.toFixed(1) + 'U ' +
+        '<b>' + translate('Carbs average') + ':</b> ' + carbsAverage.toFixed(0) + 'g ' +
+        '<b>' + translate('Protein average') + ':</b> ' + proteinAverage.toFixed(0) + 'g ' +
+        '<b>' + translate('Fat average') + ':</b> ' + fatAverage.toFixed(0) + 'g'
     );
 
   function timeTicks (n, i) {
diff --git a/views/index.html b/views/index.html
index cf13cdb91a7..3a156008903 100644
--- a/views/index.html
+++ b/views/index.html
@@ -54,9 +54,9 @@
     width: 100%;
     height: 90%;
     top: 30%;
-    left: 0%;
+    left: 0;
     font-size: 16px;
-}​
+}
 
 .spinner {
   margin: 100px auto 0;