I've suffered from this for a while now and have dealt with it. But I'm fed up with it now. Any type of video file I play and watch, the brightness/gamma on the video is fairly high and gets to be quite annoying (I'll see if I can get a camera pic of it since a screenshot obviously won't work). I've messed with the Brightness controls etc on everything I can think of, on the monitor, in the Nvidia Control Panel and in any media player (WMP 11 or Divx etc) I can think of. All settings are currently at default levels and still I have the problem. I've tried to counter act the brightness by lower gamma, brightness, contrast etc with no luck of curing the problem.
I actually run two LCD monitors and the problem occurs on both screens. I can't say when the problem started (probably 6+ months ago) and prior to that I never had any problems. I believe the problem is based on my Nvidia GPU drivers, although that last two updates in their drivers have not corrected the problem. No matter the file format, WMV, AVI, MPG, high brightness is there. Games are not affected.
The only thing I can think of on how to fix the problem is removing all the Nvidia drivers and reinstalling them (possibly rolling back to an older driver #, but before I do that I'm just looking to see if anyone has any ideas or input on it. Or if that doesn't work, uninstalling all my video codecs and reinstalling those.
System Specs:
Asus P5N-E SLI Mobo
E6400 Core 2 Duo
4gb DDR 667
XP 32bit Pro
Gf 8800 GTS 640mb (current driver 163.75)
SB audigy platinum
