virtualbox.org

When I try to rate my computer in Windows 7 Beta (VirtualBox) an error occur saying "hardware or Winodws components error" or something like this! Do you have an answer for this?

Hardware configurationg is Intel Pentuim D DualCore 3.4GHz and 128 video memory (for the virtual) and 768MB of RAM (for the virtual) Harddisk 20GB

Forget it. You have no direct hardware access, no real 3d acceleration. Aero will not work in any VM.

So what should I do? Change what hardware?

There is no hardware for you to change. The VM with Windows 7 only see's the "fake" hardware virtualbox tells it is there. You could have a dual 2gb video cards in crossfire on the host and you'll still only score a 1.0 on the vm. You need a physical OS install to do what you're looking for.

There is no answer, its virtual hardware which you can't change.