Which isn't true unfortunately. As an owner of a GF4 with NVidia's latest certified drivers, I'm afraid I can't find a gamma control on the display comntrol panel anywhere...
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It's there, though. <grin> Just a bit tricky to find. nview tab of GF4 card advanced properties, 'device settings' button, color correct.
Has gamma, brightness (seperate from gamma, real brightness adjust), digital vibrance (color saturation) controls, etc.
Oh yes, the 14.7.1 on test is MUCH 'brighter' than the current world, for whatever reason.
Omni Trade's ground is now greyish blue, instead of brown, and quite visible even at mid night. Outdoors is also much brighter ground at mid night. Whether they intended this is another question, but the graphics changes include some texture color changes like this.