ok, I found a "workaround"
I upgraded to the newest kernel (via synaptic) and installed the driver etc that way.
It seems ok, I now have:
Color correctionBrightness
Contrast
Gamma
See attached screenshot below
Here's what I am using :
kernel#2.6.23.1-21.fc7
kernel-devel#2.6.23.1-21.fc7
kernel-headers 2.6.23.1-21.fc7
kmod-nvidia#100.14.19-1.2.6.23.1_21.fc7
xorg-x11-drv-nvidia 100.14.19-3.lvn7
I'm not sure if the livna part matters, but it is one of the repos I frequent After installing these and booting into the new kernel, The nVidia X server X settings app now shows more options. Perhaps building against my non-standard kernel was a problem? Although I don't see why being that there is only one extra patch included (AFAIK)
Well, Either way, I hope this info helps other users with the same problem.