I WAS RECENTLY HAVING THE SAME PROBLEM WHEN TRYING 2 RESUME FROM
SCREEN SAVER ON WINDOWS 7 64 BIT ULTIMATE EDITION WITH A NVIDIA 650I
SLI READY MOTHER BOARD AND A NVIDIA GEFORCE 8800GT GRAPHICS CARD, AND
I WAS ABLE 2 FIX THE PROBLEM WITH THE NEW NVIDIA GEFORCE 197.45 SERIES
DEVICE DRIVER THAT JUST RECENTLY GOT RELEASED 2 HTTP://WWW.NVIDIA.COM/,
JUST FYI!