krauses

Press the DISPLAY/BACK button to toggle the amount of information displayed. For "standard" (i.e. the one with more info) you can set in the menu which information you want displayed. Same for OVC and the LCD, by the way. See p. 32–34 of the manual.

No. I would say that manual focus and face detection are by definition mutually exclusive.

It should. I had the same problem but found a fix that someone posted on some other forum: hot-swap the lenses (i.e. don't turn there camera off while you change them). Don't know if it will solve your problem, but this fixed it for me.