Diff of /src/qtgui/preview.ui [f8a066] .. [217432]

  Switch to side-by-side view 

--- a/src/qtgui/preview.ui
+++ b/src/qtgui/preview.ui
@@ -102,7 +102,7 @@
                                 <cstring>nextButton</cstring>
                             </property>
                             <property name="enabled">
-                                <bool>false</bool>
+                                <bool>true</bool>
                             </property>
                             <property name="text">
                                 <string>&amp;Next</string>
@@ -116,7 +116,7 @@
                                 <cstring>prevButton</cstring>
                             </property>
                             <property name="enabled">
-                                <bool>false</bool>
+                                <bool>true</bool>
                             </property>
                             <property name="text">
                                 <string>&amp;Previous</string>