Index: /trunk/src/VBox/Main/src-all/Global.cpp
===================================================================
--- /trunk/src/VBox/Main/src-all/Global.cpp	(revision 40670)
+++ /trunk/src/VBox/Main/src-all/Global.cpp	(revision 40671)
@@ -195,5 +195,5 @@
         StorageControllerType_IntelAhci, StorageBus_SATA, ChipsetType_PIIX3, AudioControllerType_AC97  },
     { "Linux",   "Linux",             "Ubuntu",             "Ubuntu",
-      VBOXOSTYPE_Ubuntu,          VBOXOSHINT_RTCUTC | VBOXOSHINT_USBTABLET,
+      VBOXOSTYPE_Ubuntu,          VBOXOSHINT_RTCUTC | VBOXOSHINT_PAE | VBOXOSHINT_USBTABLET,
        512,  12,  8 * _1G64, NetworkAdapterType_I82540EM, 0, StorageControllerType_PIIX4, StorageBus_IDE,
         StorageControllerType_IntelAhci, StorageBus_SATA, ChipsetType_PIIX3, AudioControllerType_AC97  },