All, the brightness control on the quick toggle / pull down menu will turn your screen all the way black if you use the lowest setting. I did this and cannot undo it - I can restart to the splash screen - but it fades to black before I can change anything. What are my options? Just a reminder - the screen is completely black so if anybody tells me to find this or that menu I am going to lose it !!! Perhaps somebody could post screen caps of the things I need to press? Any help will be greatly appreciated! FYI I'm running a very recent version of MIUI on a Mytouch 4G.