Hello, I have a (slightly) older MacBook Pro (2.16ghz, 4mb L2 cache, 667 FSB), which according to Intel contains their virtualization tech: http://www.intel.com/products/processor/core2duo/mobile/specifications.htm I want to run a Linux VM and have the hypervisor export the VT to the VM so my Linux system can support KVM. I don't really want to do anything inside the KVM VM's other than do a basic boot so I can play around with / hack with KVM without having to powerdown OS X. I realize running a VM inside of a VM will be painfully slow. I've done this on Windows with Virtual Box and it seems to work fine. However, on the latest version of Virtual Box (and the previous version I was running before I just upgraded) the checkbox under the settings for a VM (Settings->General->Advanced) the Enable VT-x/AMD-V is greyed out and I can't check it. Does anyone know what I can do to fix this? UPDATE: I also have VMware Fusion, if anyone knows how to accomplish this same thing with that product, however, I haven't seen anything. Thanks.