diff --git a/src/bittorrent.cpp b/src/bittorrent.cpp
index 4d351de32..9cf65234d 100644
--- a/src/bittorrent.cpp
+++ b/src/bittorrent.cpp
@@ -1181,7 +1181,7 @@ void bittorrent::readAlerts() {
         // Authentication
         if(p->status_code != 401) {
           QString hash = h.hash();
-          qDebug("Received a tracker error for %s", (const char*)misc::toQString(p->url).toUtf8());
+          qDebug("Received a tracker error for %s", p->url.c_str());
           QHash<QString, QString> errors = trackersErrors.value(hash, QHash<QString, QString>());
           // p->url requires at least libtorrent v0.13.1
           errors[misc::toQString(p->url)] = QString::fromUtf8(a->msg().c_str());
diff --git a/src/properties.ui b/src/properties.ui
index 0f16405d3..f340b84d2 100644
--- a/src/properties.ui
+++ b/src/properties.ui
@@ -16,24 +16,23 @@
    <property name="spacing" >
     <number>6</number>
    </property>
-   <property name="leftMargin" >
-    <number>9</number>
-   </property>
-   <property name="topMargin" >
-    <number>9</number>
-   </property>
-   <property name="rightMargin" >
-    <number>9</number>
-   </property>
-   <property name="bottomMargin" >
+   <property name="margin" >
     <number>9</number>
    </property>
    <item>
     <widget class="QTabWidget" name="torrentContent" >
      <property name="currentIndex" >
-      <number>1</number>
+      <number>0</number>
      </property>
      <widget class="QWidget" name="tab_1" >
+      <property name="geometry" >
+       <rect>
+        <x>0</x>
+        <y>0</y>
+        <width>572</width>
+        <height>539</height>
+       </rect>
+      </property>
       <attribute name="title" >
        <string>Main infos</string>
       </attribute>
@@ -87,16 +86,7 @@
           <property name="spacing" >
            <number>6</number>
           </property>
-          <property name="leftMargin" >
-           <number>9</number>
-          </property>
-          <property name="topMargin" >
-           <number>9</number>
-          </property>
-          <property name="rightMargin" >
-           <number>9</number>
-          </property>
-          <property name="bottomMargin" >
+          <property name="margin" >
            <number>9</number>
           </property>
           <item>
@@ -104,16 +94,7 @@
             <property name="spacing" >
              <number>6</number>
             </property>
-            <property name="leftMargin" >
-             <number>0</number>
-            </property>
-            <property name="topMargin" >
-             <number>0</number>
-            </property>
-            <property name="rightMargin" >
-             <number>0</number>
-            </property>
-            <property name="bottomMargin" >
+            <property name="margin" >
              <number>0</number>
             </property>
             <item>
@@ -121,16 +102,7 @@
               <property name="spacing" >
                <number>6</number>
               </property>
-              <property name="leftMargin" >
-               <number>0</number>
-              </property>
-              <property name="topMargin" >
-               <number>0</number>
-              </property>
-              <property name="rightMargin" >
-               <number>0</number>
-              </property>
-              <property name="bottomMargin" >
+              <property name="margin" >
                <number>0</number>
               </property>
               <item>
@@ -222,16 +194,7 @@
               <property name="spacing" >
                <number>6</number>
               </property>
-              <property name="leftMargin" >
-               <number>0</number>
-              </property>
-              <property name="topMargin" >
-               <number>0</number>
-              </property>
-              <property name="rightMargin" >
-               <number>0</number>
-              </property>
-              <property name="bottomMargin" >
+              <property name="margin" >
                <number>0</number>
               </property>
               <item>
@@ -299,7 +262,7 @@
               <property name="orientation" >
                <enum>Qt::Horizontal</enum>
               </property>
-              <property name="sizeHint" >
+              <property name="sizeHint" stdset="0" >
                <size>
                 <width>40</width>
                 <height>20</height>
@@ -363,16 +326,7 @@
           <property name="spacing" >
            <number>6</number>
           </property>
-          <property name="leftMargin" >
-           <number>9</number>
-          </property>
-          <property name="topMargin" >
-           <number>9</number>
-          </property>
-          <property name="rightMargin" >
-           <number>9</number>
-          </property>
-          <property name="bottomMargin" >
+          <property name="margin" >
            <number>9</number>
           </property>
           <item>
@@ -380,16 +334,7 @@
             <property name="spacing" >
              <number>6</number>
             </property>
-            <property name="leftMargin" >
-             <number>0</number>
-            </property>
-            <property name="topMargin" >
-             <number>0</number>
-            </property>
-            <property name="rightMargin" >
-             <number>0</number>
-            </property>
-            <property name="bottomMargin" >
+            <property name="margin" >
              <number>0</number>
             </property>
             <item>
@@ -397,16 +342,7 @@
               <property name="spacing" >
                <number>6</number>
               </property>
-              <property name="leftMargin" >
-               <number>0</number>
-              </property>
-              <property name="topMargin" >
-               <number>0</number>
-              </property>
-              <property name="rightMargin" >
-               <number>0</number>
-              </property>
-              <property name="bottomMargin" >
+              <property name="margin" >
                <number>0</number>
               </property>
               <item>
@@ -488,16 +424,7 @@
               <property name="spacing" >
                <number>6</number>
               </property>
-              <property name="leftMargin" >
-               <number>0</number>
-              </property>
-              <property name="topMargin" >
-               <number>0</number>
-              </property>
-              <property name="rightMargin" >
-               <number>0</number>
-              </property>
-              <property name="bottomMargin" >
+              <property name="margin" >
                <number>0</number>
               </property>
               <item>
@@ -535,7 +462,7 @@
               <property name="orientation" >
                <enum>Qt::Horizontal</enum>
               </property>
-              <property name="sizeHint" >
+              <property name="sizeHint" stdset="0" >
                <size>
                 <width>181</width>
                 <height>20</height>
@@ -569,6 +496,14 @@
       </layout>
      </widget>
      <widget class="QWidget" name="tab_2" >
+      <property name="geometry" >
+       <rect>
+        <x>0</x>
+        <y>0</y>
+        <width>572</width>
+        <height>539</height>
+       </rect>
+      </property>
       <attribute name="title" >
        <string>Trackers</string>
       </attribute>
@@ -578,16 +513,7 @@
          <property name="spacing" >
           <number>6</number>
          </property>
-         <property name="leftMargin" >
-          <number>0</number>
-         </property>
-         <property name="topMargin" >
-          <number>0</number>
-         </property>
-         <property name="rightMargin" >
-          <number>0</number>
-         </property>
-         <property name="bottomMargin" >
+         <property name="margin" >
           <number>0</number>
          </property>
          <item>
@@ -613,16 +539,7 @@
            <property name="spacing" >
             <number>6</number>
            </property>
-           <property name="leftMargin" >
-            <number>0</number>
-           </property>
-           <property name="topMargin" >
-            <number>0</number>
-           </property>
-           <property name="rightMargin" >
-            <number>0</number>
-           </property>
-           <property name="bottomMargin" >
+           <property name="margin" >
             <number>0</number>
            </property>
            <item>
@@ -640,16 +557,7 @@
              <property name="spacing" >
               <number>6</number>
              </property>
-             <property name="leftMargin" >
-              <number>0</number>
-             </property>
-             <property name="topMargin" >
-              <number>0</number>
-             </property>
-             <property name="rightMargin" >
-              <number>0</number>
-             </property>
-             <property name="bottomMargin" >
+             <property name="margin" >
               <number>0</number>
              </property>
              <item>
@@ -657,7 +565,7 @@
                <property name="orientation" >
                 <enum>Qt::Horizontal</enum>
                </property>
-               <property name="sizeHint" >
+               <property name="sizeHint" stdset="0" >
                 <size>
                  <width>40</width>
                  <height>20</height>
@@ -708,7 +616,7 @@
                <property name="orientation" >
                 <enum>Qt::Horizontal</enum>
                </property>
-               <property name="sizeHint" >
+               <property name="sizeHint" stdset="0" >
                 <size>
                  <width>40</width>
                  <height>20</height>
@@ -725,16 +633,7 @@
            <property name="spacing" >
             <number>6</number>
            </property>
-           <property name="leftMargin" >
-            <number>0</number>
-           </property>
-           <property name="topMargin" >
-            <number>0</number>
-           </property>
-           <property name="rightMargin" >
-            <number>0</number>
-           </property>
-           <property name="bottomMargin" >
+           <property name="margin" >
             <number>0</number>
            </property>
            <item>
@@ -742,7 +641,7 @@
              <property name="orientation" >
               <enum>Qt::Vertical</enum>
              </property>
-             <property name="sizeHint" >
+             <property name="sizeHint" stdset="0" >
               <size>
                <width>20</width>
                <height>40</height>
@@ -793,7 +692,7 @@
              <property name="orientation" >
               <enum>Qt::Vertical</enum>
              </property>
-             <property name="sizeHint" >
+             <property name="sizeHint" stdset="0" >
               <size>
                <width>20</width>
                <height>40</height>
@@ -810,16 +709,7 @@
          <property name="spacing" >
           <number>6</number>
          </property>
-         <property name="leftMargin" >
-          <number>0</number>
-         </property>
-         <property name="topMargin" >
-          <number>0</number>
-         </property>
-         <property name="rightMargin" >
-          <number>0</number>
-         </property>
-         <property name="bottomMargin" >
+         <property name="margin" >
           <number>0</number>
          </property>
          <item>
@@ -864,7 +754,7 @@
            <property name="orientation" >
             <enum>Qt::Horizontal</enum>
            </property>
-           <property name="sizeHint" >
+           <property name="sizeHint" stdset="0" >
             <size>
              <width>40</width>
              <height>20</height>
@@ -882,7 +772,7 @@
          <property name="sizeType" >
           <enum>QSizePolicy::Minimum</enum>
          </property>
-         <property name="sizeHint" >
+         <property name="sizeHint" stdset="0" >
           <size>
            <width>20</width>
            <height>40</height>
@@ -893,6 +783,14 @@
       </layout>
      </widget>
      <widget class="QWidget" name="tab_3" >
+      <property name="geometry" >
+       <rect>
+        <x>0</x>
+        <y>0</y>
+        <width>640</width>
+        <height>320</height>
+       </rect>
+      </property>
       <attribute name="title" >
        <string>Url seeds</string>
       </attribute>
@@ -900,16 +798,7 @@
        <property name="spacing" >
         <number>6</number>
        </property>
-       <property name="leftMargin" >
-        <number>9</number>
-       </property>
-       <property name="topMargin" >
-        <number>9</number>
-       </property>
-       <property name="rightMargin" >
-        <number>9</number>
-       </property>
-       <property name="bottomMargin" >
+       <property name="margin" >
         <number>9</number>
        </property>
        <item>
@@ -933,16 +822,7 @@
          <property name="spacing" >
           <number>6</number>
          </property>
-         <property name="leftMargin" >
-          <number>0</number>
-         </property>
-         <property name="topMargin" >
-          <number>0</number>
-         </property>
-         <property name="rightMargin" >
-          <number>0</number>
-         </property>
-         <property name="bottomMargin" >
+         <property name="margin" >
           <number>0</number>
          </property>
          <item>
@@ -950,7 +830,7 @@
            <property name="orientation" >
             <enum>Qt::Horizontal</enum>
            </property>
-           <property name="sizeHint" >
+           <property name="sizeHint" stdset="0" >
             <size>
              <width>40</width>
              <height>20</height>
@@ -989,7 +869,7 @@
            <property name="orientation" >
             <enum>Qt::Horizontal</enum>
            </property>
-           <property name="sizeHint" >
+           <property name="sizeHint" stdset="0" >
             <size>
              <width>40</width>
              <height>20</height>
@@ -1004,7 +884,7 @@
          <property name="orientation" >
           <enum>Qt::Vertical</enum>
          </property>
-         <property name="sizeHint" >
+         <property name="sizeHint" stdset="0" >
           <size>
            <width>20</width>
            <height>40</height>
@@ -1015,6 +895,14 @@
       </layout>
      </widget>
      <widget class="QWidget" name="tab_4" >
+      <property name="geometry" >
+       <rect>
+        <x>0</x>
+        <y>0</y>
+        <width>640</width>
+        <height>320</height>
+       </rect>
+      </property>
       <attribute name="title" >
        <string>Torrent content</string>
       </attribute>
@@ -1022,16 +910,7 @@
        <property name="spacing" >
         <number>6</number>
        </property>
-       <property name="leftMargin" >
-        <number>9</number>
-       </property>
-       <property name="topMargin" >
-        <number>9</number>
-       </property>
-       <property name="rightMargin" >
-        <number>9</number>
-       </property>
-       <property name="bottomMargin" >
+       <property name="margin" >
         <number>9</number>
        </property>
        <item>
@@ -1104,16 +983,7 @@
      <property name="spacing" >
       <number>6</number>
      </property>
-     <property name="leftMargin" >
-      <number>0</number>
-     </property>
-     <property name="topMargin" >
-      <number>0</number>
-     </property>
-     <property name="rightMargin" >
-      <number>0</number>
-     </property>
-     <property name="bottomMargin" >
+     <property name="margin" >
       <number>0</number>
      </property>
      <item>
@@ -1121,7 +991,7 @@
        <property name="orientation" >
         <enum>Qt::Horizontal</enum>
        </property>
-       <property name="sizeHint" >
+       <property name="sizeHint" stdset="0" >
         <size>
          <width>40</width>
          <height>20</height>
@@ -1141,7 +1011,7 @@
        <property name="orientation" >
         <enum>Qt::Horizontal</enum>
        </property>
-       <property name="sizeHint" >
+       <property name="sizeHint" stdset="0" >
         <size>
          <width>40</width>
          <height>20</height>