On Wednesday 24 December 2008, number_...@hotmail.com wrote:
> Thanks for your reply.
>
> The checkbox is already activate

Starting with VirtualBox 2.1 it is necessary to select a 64-bit
flavor in the VM settings. If these flavors are not displayed,
then your CPU does not support 64-bit. For instance, Core Duo
CPUs from Intel do support VT-x but do NOT support 64-bit.

What do I mean by '64-bit flavor'? In OS Version choose

  "Debian (64 bit)" or "Linux 2.6 (64 bit)"

instead of

  "Debian" or "Linux 2.6"

Kind regards,

Frank
-- 
Dr.-Ing. Frank Mehnert    Sun Microsystems    http://www.sun.com/

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