BIOS: *-firmware description: BIOS vendor: Hewlett-Packard physical id: 9 version: 68CAD Ver. F.21 date: 12/05/2011 size: 64KiB capacity: 3008KiB capabilities: pci pcmcia upgrade shadowing cdboot bootselect edd int5printscreen int9keyboard int14serial int17printer acpi usb ieee1394boot smartbattery biosbootspecification netboot VirtualBox cautions me that guests will not be able to run in 64-bit mode and tells me to check the virtualization (VT-X / AMD-V) settings in the BIOS configuration. However, I see no virtualization settings in the BIOS setup menu. Can anybody tell me how to go about enabling virtualization in BIOS? Do I need an upgrade of the BIOS, or additional firmware? Or is it a matter of finding the right software drivers under the OS? Thanks in advance for any response!