True, it's a beta driver but this one has an important fix over the 77.72 (see last entry below). It's available at nZone.
[quote]
Issues Resolved in Version 77.76
This following are changes made and issues resolved since driver version 77.72:
Single GPU Issues
â?¢ GeForce 7800 GTX: At extremely cold temperatures (less than -10 degrees C), the GPU clock speed enters â??high temperatureâ?
nVidia ForceWare 77.76 (beta)
Re: nVidia ForceWare 77.76 (beta)
Bwahaha!â?¢ All GPUs: Fixed a memory allocation issue that caused general instability in a variety of games.
This sucked. It did the same thing on my FX 5200 and forced me to install the international drivers that came with the BF2 demo instead.77.76 wrote:â?¢ GeForce 6800/6800GT/6800 Ultra, GeForce FX 5700/5600, Windows XP, Windows XP Professional x64: NVIDIA Overlay gamma controls under Standard mode do not work properly, resulting in overly dark or overly bright video.