somehow the settings stopped sticking for me after reboot. my dialed numbers are still there but i have to push Apply button to enable them after a reboot (was working fine before). running last cloudy's kernel for G2 KK (1.6). not sure if it has anything to do with the fact that i installed a new screen panel.
edit: doesn't stick on latest Dorimanx kernel as well.
also, did you give up on adding gamma controls?