If so your BIOS must enable it first. Try a PS/2 keyboard.
I recently had the itch to try Kubuntu via Wubi (a Ubuntu installer for win), therfore I installed Wubi on my Windows XP Pro desktop pc. I have stumbled into a slight problem, whereby I am not able to choose which OS, for instance:
On the boot screen...
Microsoft Windows XP Professional
Im not able to select 'Ubuntu', because my keyboard arrow; up and down is not moving (the keyboard is working fine, I even tried on several other keyboards, the problem still consist).
Is there a need of me adding something to 'c:\boot.ini' file? or something to do with my keyboard settings.