diff --git a/effects/slide/slide_config.ui b/effects/slide/slide_config.ui
--- a/effects/slide/slide_config.ui
+++ b/effects/slide/slide_config.ui
@@ -12,40 +12,22 @@
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
-    <layout class="QHBoxLayout" name="layout_Duration">
-     <item>
+    <layout class="QFormLayout" name="layout_Duration">
+     <item row="0" column="0">
       <widget class="QLabel" name="label_Duration">
-       <property name="minimumSize">
-        <size>
-         <width>100</width>
-         <height>0</height>
-        </size>
-       </property>
        <property name="text">
-        <string>D&amp;uration:</string>
-       </property>
-       <property name="alignment">
-        <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
-       </property>
-       <property name="buddy">
-        <cstring>kcfg_Duration</cstring>
+        <string>Duration:</string>
        </property>
       </widget>
      </item>
-     <item>
+     <item row="0" column="1">
       <widget class="QSpinBox" name="kcfg_Duration">
        <property name="sizePolicy">
         <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
          <horstretch>0</horstretch>
          <verstretch>0</verstretch>
         </sizepolicy>
        </property>
-       <property name="minimumSize">
-        <size>
-         <width>0</width>
-         <height>0</height>
-        </size>
-       </property>
        <property name="specialValueText">
         <string extracomment="Duration of the slide animation.">Default</string>
        </property>
@@ -63,94 +45,56 @@
     </layout>
    </item>
    <item>
-    <widget class="QGroupBox" name="groupbox_Gaps">
-     <property name="enabled">
-      <bool>true</bool>
-     </property>
+    <widget class="QGroupBox" name="groupBox_Gaps">
      <property name="title">
       <string>Gap between desktops</string>
      </property>
-     <layout class="QVBoxLayout" name="verticalLayout_2">
-      <item>
-       <layout class="QHBoxLayout" name="layout_HorizontalGap">
-        <item>
-         <widget class="QLabel" name="label_HorizontalGap">
-          <property name="minimumSize">
-           <size>
-            <width>100</width>
-            <height>0</height>
-           </size>
-          </property>
-          <property name="text">
-           <string>Hori&amp;zontal:</string>
-          </property>
-          <property name="alignment">
-           <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
-          </property>
-          <property name="buddy">
-           <cstring>kcfg_HorizontalGap</cstring>
-          </property>
-         </widget>
-        </item>
-        <item>
-         <widget class="QSpinBox" name="kcfg_HorizontalGap">
-          <property name="sizePolicy">
-           <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
-            <horstretch>0</horstretch>
-            <verstretch>0</verstretch>
-           </sizepolicy>
-          </property>
-          <property name="suffix">
-           <string/>
-          </property>
-          <property name="maximum">
-           <number>1000</number>
-          </property>
-          <property name="singleStep">
-           <number>5</number>
-          </property>
-         </widget>
-        </item>
-       </layout>
+     <layout class="QFormLayout" name="formLayout_2">
+      <item row="0" column="0">
+       <widget class="QLabel" name="label_HorizontalGap">
+        <property name="text">
+         <string>Horizontal:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QSpinBox" name="kcfg_HorizontalGap">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="maximum">
+         <number>1000</number>
+        </property>
+        <property name="singleStep">
+         <number>5</number>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="label_VerticalGap">
+        <property name="text">
+         <string>Vertical:</string>
+        </property>
+       </widget>
       </item>
-      <item>
-       <layout class="QHBoxLayout" name="layout_VerticalGap">
-        <item>
-         <widget class="QLabel" name="label_VerticalGap">
-          <property name="minimumSize">
-           <size>
-            <width>100</width>
-            <height>0</height>
-           </size>
-          </property>
-          <property name="text">
-           <string>Ver&amp;tical:</string>
-          </property>
-          <property name="alignment">
-           <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
-          </property>
-          <property name="buddy">
-           <cstring>kcfg_VerticalGap</cstring>
-          </property>
-         </widget>
-        </item>
-        <item>
-         <widget class="QSpinBox" name="kcfg_VerticalGap">
-          <property name="sizePolicy">
-           <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
-            <horstretch>0</horstretch>
-            <verstretch>0</verstretch>
-           </sizepolicy>
-          </property>
-          <property name="maximum">
-           <number>1000</number>
-          </property>
-          <property name="singleStep">
-           <number>5</number>
-          </property>
-         </widget>
-        </item>
-       </layout>
+      <item row="1" column="1">
+       <widget class="QSpinBox" name="kcfg_VerticalGap">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="maximum">
+         <number>1000</number>
+        </property>
+        <property name="singleStep">
+         <number>5</number>
+        </property>
+       </widget>
       </item>
      </layout>
     </widget>