Apple updated Boot Camp to 1.2 beta today. I installed the update, then ran the Boot Camp Assistant (Found in /Applications/Utilities) and made a new windows drivers disc.
I booted into Windows XP, installed the new drivers and rebooted. Then I installed Windows Media Player 11, the WMDRM junk and tried the Netflix “Watch Now” feature. It had me update one WMP component and it finally worked! No more green / inverse graphics.