Logitech Bluetooth keyboard doesn't work on Dual Boot Selector!

I have a problem with my Logitech diNovo Edge Bluetooth keyboard. My
computer is currently set up as a dual boot system between Windows
Vista RC2 and Windows XP. I can access CMOS setup during initial boot
just fine but the boot screen (where I select between Vista and XP)
isn't responding to any keyboard commands. I have to attach my old USB
keyboard each time I boot up which as you can imagine is very annoying.

Since the boot selector screen comes from Vista (I installed XP first,
Vista afterwards) could it be that they have added Bluetooth keyboard
support for the final release? Or is there another solution to my
problem? Is there a solution at all?

Thanks for your help!