diff --git a/java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/client/media/MediaPlayerManagerComponent.java b/java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/client/media/MediaPlayerManagerComponent.java
index 090e5466e43..6e6a314cca5 100755
--- a/java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/client/media/MediaPlayerManagerComponent.java
+++ b/java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/client/media/MediaPlayerManagerComponent.java
@@ -131,7 +131,6 @@ public class MediaPlayerManagerComponent extends AbstractComponent<MediaPlayerSe
         this.popupPositionProvider = popupPositionProvider;
         this.settings = settings;
         this.storageServiceAvailable = new FileStorageServiceConnectionTestObservable(sailingServiceWrite);
-        Window.addCloseHandler(this);
         Window.addWindowClosingHandler(this);
         userService.addUserStatusEventHandler(new UserStatusEventHandler() {
             @Override
diff --git a/java/com.sap.sse.gwt/src/com/sap/sse/gwt/client/controls/slider/SliderBar.java b/java/com.sap.sse.gwt/src/com/sap/sse/gwt/client/controls/slider/SliderBar.java
index 1a4a364607f..db5c3a49499 100755
--- a/java/com.sap.sse.gwt/src/com/sap/sse/gwt/client/controls/slider/SliderBar.java
+++ b/java/com.sap.sse.gwt/src/com/sap/sse/gwt/client/controls/slider/SliderBar.java
@@ -513,7 +513,7 @@ public class SliderBar extends FocusPanel implements RequiresResize, HasValue<Do
                 break;
             // Mousewheel events
             case Event.ONMOUSEWHEEL:
-                int velocityY = event.getMouseWheelVelocityY();
+                final double velocityY = event.getDeltaY();
                 event.preventDefault();
                 if (velocityY > 0) {
                     shiftRight(1);