I have Virtualbox 3.2.12 on Windows 7 64 Bit.
When I attempt to boot the ubuntu-10.10-desktop-amd64 ISO I get an error:
"This kernel requires an x86-64 CPU, but only detected an i686 CPU.
Unable to boot - please use a kernel appropriate for your CPU."
The CPU is a NVidia Ion.
If it's a 64 bit operating system booting a 64 bit guest, I don't understand how I can make it any more 64 bit than it already is.