I had a similar problem with the most recent drivers. It's most likeley cause by the fact that the drivers crank the gamma up to <b>6.0</b> by default.
Open up your nividia control panel, go to color correction, then click "Overlay" from the drop-down box in the top left, then finally click "Advanced Mode" option in the bottom left box. That should reset the gamma back to 1.0
<P ID="edit"><FONT SIZE=-1><EM>Edited by Cody_7 on 08/10/05 10:45 PM.</EM></FONT></P>