I'm trying to install backtrack linux on virtualbox on windows 7 as the host machine. I'm trying to follow this tutorial (written for mac): http://www.backtrack-linux.org/wiki/index.php/VirtualBox_Install
I downloaded backtrack 5 R2 64 bit and I'm trying to install it. When I power on the virtual image, i get the following error:
VT-x/AMD-V hardware acceleration has been enabled, but is not operational. Your 64-bit guest will fail to detect a 64-bit CPU and will not be able to boot. Please ensure that you have enabled VT-x/AMD-V properly in the BIOS of your host computer.
I then continue with installation. It eventually tells me that I'm using an i686 cpu and that I need to use a 64bit cpu. I have a 64bit core i5 cpu. What's the issue?