diff --git a/applets/comic/comic.cpp b/applets/comic/comic.cpp
--- a/applets/comic/comic.cpp
+++ b/applets/comic/comic.cpp
@@ -386,6 +382,7 @@
     cg.writeEntry( "tabIdentifier", mTabIdentifier );
     cg.writeEntry( "checkNewComicStripsIntervall", mCheckNewComicStripsInterval );
     cg.writeEntry( "maxComicLimit", mMaxComicLimit);
+    cg.sync();
 
     globalComicUpdater->save();
 }
@@ -418,6 +415,7 @@
     if (suffix != cg.readEntry(QLatin1String("lastStrip_") + identifier, QString())) {
         qDebug() << identifier << "has a newer strip.";
         cg.writeEntry(QLatin1String("lastStripVisited_") + identifier, false);
+        cg.sync();
         updateComic(suffix);
     }
 }
diff --git a/applets/comic/comicupdater.cpp b/applets/comic/comicupdater.cpp
--- a/applets/comic/comicupdater.cpp
+++ b/applets/comic/comicupdater.cpp
@@ -58,6 +58,7 @@
 void ComicUpdater::save()
 {
     mGroup.writeEntry( "updateInterval", mUpdateIntervall );
+    mGroup.sync();
 }
 
 void ComicUpdater::setInterval( int interval )
@@ -80,7 +81,9 @@
     }
 
     if ( !mLastUpdate.isValid() || ( mLastUpdate.addDays( mUpdateIntervall ) < QDateTime::currentDateTime() ) ) {
-        mGroup.writeEntry( "lastUpdate", QDateTime::currentDateTime() );
+        mLastUpdate = QDateTime::currentDateTime();
+        mGroup.writeEntry( "lastUpdate", mLastUpdate );
+        mGroup.sync();
         downloadManager()->checkForUpdates();
     }
 }