Hey Chris,
I have the same laptop as you, but presently running Windows 7 64-bit. I've tried all three iso's booting from DVD as well as USB stick.
I also tried all three versions of the BIOS (x32, x34, x36) and also each with and without the video card driver installed - yet still receive the same error.
Figured I'd let you know that you didn't have to waste the time/risk flashing your bios since it won't work.
I guess for now we are stuck waiting for an update and playing with the Windows Developer Preview in VirtualBox.