Hy frnz i have installed ml on my 600d ...everything is fine but the lv brightness,contrast and saturation is not working ... i mean its working when in live view mode...but when i click them ...it reverts back to original config. no xtra brightness no cntrast and no satura.. :(
It's not clear what your problem is. Perhaps you should rephrase it more clearly, and/or post a video of the problem.
http://wiki.magiclantern.fm/userguide#display