Can't install a 64-bit virtualbox on 64-bit unbunu 12.04?

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http://askubuntu.com – I have freshly installed 64 bit Win 7 and 12.04 ubuntu dual boot machine (via a wubi install). I verified that wubi installed 64-bit ubuntu 12.04 and I specifically downloaded and installed the 64-Bit virtualbox package from the virtualbox website located at https://www.virtualbox.org/wiki/Linux_Downloads Ubuntu 12.04 LTS ("Precise Pangolin") i386 | AMD64 (NOTE: I have a TOSHIBA c655, with an Intel Pentium chip inside, there I selected the AMD64 as instructed to on the top of the page) The problem is that when I run Vbox, it will only allow me to install and run 32 Bit guests (32 bit W (HowTos)