I think, "acceptance" is the last of the stages of grief. I´m not there yet.This graphic setting bug is as old as DDO. Just move on.
No, I use full screen, it still resets to the default setting all the time.If you play in Full Screen mode (not Windowed Full Screen), changes to Gamma level will "stick" as long as you keep opening the game in Full Screen mode.
If you play in any sort of Windowed mode, the game is no longer controlling the Gamma level, Windows is. Unless you can use the Windows OS to regulate Gamma levels in your games via Windows itself or through a third party program, your Gamma levels will always reset to however you had it set in Windows or said third party program.