Yup, worked for me. Have you ticked all the relevant options in the VM Settings?
First stop in the System menu. Start with the Motherboard
sub-menu and check Enable IO APIC to improve performance
for your virtual machine. In the Processor sub-menu check
Enable PAE/NX (again, to boost performance). Finally under
the Acceleration sub-menu make sure both of the hardware
virtualization boxes are checked—VT-x/AMD-V and Nested
Paging, respectively.
