GZDooM's ingame gamma setting keeps reset to default in Win7

[playerlin]

It was not happened on my old XP machine with the old(and dead) 8600GT, but now it keeps to happen after I had the new one with Win7 64bits and Geforce GTX 660 Ti, quite annoying...

Well, this is not a big problem, because it will go back to normal when I go to the video setting menu, then move the gamma setting slider.
But when I restart GZDooM everytime or hit Alt+Enter to switching between Fullscreen and Window mode, it'll reset again.

The GZDooM I'm using now is the latest devbuild one from the DRDTeam Dev Build site.
The nvidia driver is the latest release one : 331.82.
I guess it may cause by driver or something on my system but I can't found one...

Is anyone has the same problem, or have any ideas? :\

Off-topic:
I also got the same shit happens on other OpenGL games/source ports, like eduke32, but with its current latest synthesis build(r4207), it only happens when I start the game, but unlike older synthesis builds of eduke32, ingame gamma won't get reset when switching between Fullscreen and Window mode in polymost(not try polymer yet), but still, everytime I start the game then I have to change the gamma setting to the one I want...just annoying.

[playerlin]

Ok, I guess I found the problem is, seems newer versions of nVidia control center changed some settings about the "desktop color setting - brightness, contrast and gamma" in their driver, I didn't want to use the default setting(by applications), and want to do manual setting(use nVidia setting). And seem it will overriding some OpenGL programs(at least like GZDooM ,DN:ME, SW Redux and eduke32) when program started and initialized.

If I change to default one(by applications), this problem won't happens it seems...

Great, I have to mess my monitor setting again...