Index: /trunk/src/VBox/Frontends/VirtualBox/src/runtime/fullscreen/UIMachineWindowFullscreen.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/runtime/fullscreen/UIMachineWindowFullscreen.cpp	(revision 31283)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/runtime/fullscreen/UIMachineWindowFullscreen.cpp	(revision 31284)
@@ -98,4 +98,7 @@
     /* Save window settings: */
     saveWindowSettings();
+
+    /* Cleanup mini tool-bar: */
+    cleanupMiniToolBar();
 
     /* Prepare handlers: */
@@ -259,4 +262,13 @@
 }
 
+void UIMachineWindowFullscreen::cleanupMiniToolBar()
+{
+    if (m_pMiniToolBar)
+    {
+        delete m_pMiniToolBar;
+        m_pMiniToolBar = 0;
+    }
+}
+
 void UIMachineWindowFullscreen::cleanupMenu()
 {
Index: /trunk/src/VBox/Frontends/VirtualBox/src/runtime/fullscreen/UIMachineWindowFullscreen.h
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/runtime/fullscreen/UIMachineWindowFullscreen.h	(revision 31283)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/runtime/fullscreen/UIMachineWindowFullscreen.h	(revision 31284)
@@ -75,5 +75,5 @@
     void saveWindowSettings();
     void cleanupMachineView();
-    //void cleanupMiniToolBar() {}
+    void cleanupMiniToolBar();
     void cleanupMenu();
 
Index: /trunk/src/VBox/Frontends/VirtualBox/src/runtime/seamless/UIMachineWindowSeamless.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/runtime/seamless/UIMachineWindowSeamless.cpp	(revision 31283)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/runtime/seamless/UIMachineWindowSeamless.cpp	(revision 31284)
@@ -77,6 +77,6 @@
     prepareHandlers();
 
+#ifndef Q_WS_MAC
     /* Prepare mini tool-bar: */
-#ifndef Q_WS_MAC
     prepareMiniToolBar();
 #endif /* Q_WS_MAC */
@@ -101,4 +101,9 @@
     /* Save window settings: */
     saveWindowSettings();
+
+#ifndef Q_WS_MAC
+    /* Cleanup mini tool-bar: */
+    cleanupMiniToolBar();
+#endif /* Q_WS_MAC */
 
     /* Prepare handlers: */
@@ -319,4 +324,15 @@
 }
 
+#ifndef Q_WS_MAC
+void UIMachineWindowSeamless::cleanupMiniToolBar()
+{
+    if (m_pMiniToolBar)
+    {
+        delete m_pMiniToolBar;
+        m_pMiniToolBar = 0;
+    }
+}
+#endif /* Q_WS_MAC */
+
 void UIMachineWindowSeamless::cleanupMenu()
 {
Index: /trunk/src/VBox/Frontends/VirtualBox/src/runtime/seamless/UIMachineWindowSeamless.h
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/runtime/seamless/UIMachineWindowSeamless.h	(revision 31283)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/runtime/seamless/UIMachineWindowSeamless.h	(revision 31284)
@@ -89,5 +89,5 @@
     void cleanupMachineView();
 #ifndef Q_WS_MAC
-    //void cleanupMiniToolBar() {}
+    void cleanupMiniToolBar();
 #endif /* Q_WS_MAC */
     void cleanupMenu();