VirtualBox 2.2.2 hangs on ubuntu server 9.04

[L777]

Hi Community,
I've installed VirtualBox 2.2.2 on ubuntu server 9.04, the installation went fine and everything worked untill I dicided to remote connect to my virtual box from ubuntu desktop 9.04 with rdesktop.

Here is the error message I'm getting at boot time:

"Starting up ...
This kernel requires the following features not present on the CPU: 0.6 unable to boot. Please use a kernel appropriate for your CPU.

I already disabled ACPI, I'm running VirtualBox on a Dell Dimension C521, has anyone have this problem? what else should I do?

Thanks,

[L777]

i found the solution to my problem, here is the answer.

http://ubuntuforums.org/showthread.php?t=1098151