I can confirm that this problem still exists with VirtualBox 3.0.10 (PUEL). Also, my experience is the same as Fale's. I was able to run WinXP in VirtualBox 3.0.8 (PUEL) with VT-x turned on & 2 CPU's without an issue.
I can confirm that this problem still exists with VirtualBox 3.0.10 (PUEL). Also, my experience is the same as Fale's. I was able to run WinXP in VirtualBox 3.0.8 (PUEL) with VT-x turned on & 2 CPU's without an issue.